These are simply converted from the SE Mod, published with permission of Janquel.
Thanks to Janquel and team (see below for full list) for the patches!
If you like this version, please download and endorse the original mod as well.
I will be adding more ports (see below), but it'll be a little slow.

Original Mod Description (some info doesn't apply to this version):
While building a modlist, I wanted to include Cities of the North - Dawnstar for its unique building designs, however it ran into a number of conflicts with item placements for other mods which I used. This resulted in a bit of a rabbit hole, teaching myself how to use the CK in addition to xEdit, and creating a series of patches which I felt others could use. This is my first time uploading something, so please bear with me, and I hope you enjoy. Each mod which has a patch is listed below, with specific details of all changes contained in spoilers. All patches are ESP flagged as ESL, so they will not take up load order space (unless you're at the thousands of patches level). As I'm now moving into maintenance mode, I'm adding which version of the parent mods is the most recent one I've actively taken a look at. If parent mods continue to update further, these patches may not work as intended, or may not do everything they're supposed to do.


Included Patch Descriptions (edited for LE)

Ported
3DNPCs/Interesting NPCs -  includes the1yunico's patch which moves Theron's location inside the Windpeak Inn, as well as a number of other markers for the A Path of Bones quest (link contains quest spoilers). Thanks to Gnewna for testing it out and giving feedback, it all appears to work aside from some glitches that exist in the original patch anyway. You will need a new game for this to work.

Amulets of Skyrim - Moves five amulets to their appropriate locations in the new interiors. Last checked against version 4.05

Cheesemod for EVERYONE - Shifts a few added cheeses to match the new interior. Checked against version 1.0.1.

Cloaks of Skyrim - Moves four placed cloaks to appropriate locations in the new interiors. Last checked against version 1.2.

Clockwork - Moves the trapdoor location to match new exterior. Last checked against version 1.0.3.

Denizens of Morthal - Conflict-resolution patch where a bedroll's ownership is changed. Last checked against version 1.0. You will need a new game for this to work.

Elder Outfit Overhaul -Just a load order compatibility patch. Ensures Madena and Frida spawn in their new location if EEO is placed after COTN - Dawnstar. Last checked against version 1.52.

Enhanced Lights and FX - Three patches available. Exclusive Patch has all of COTN - Dawnstar's changes to lights/objects forwarded, and removes all references added by ELFX. Inclusive Patch applies the ELFX lighting/effects to the new interiors as best as I was able, and includes new meshes for the Jarl's Keep/Inn. Install one of those two. Exteriors patch included separately. BETA- Last checked against version 3.04.

Equippable Tomes - moves one placed object in Silus's house to appropriate location in the new interior. Last checked against version 1.01

The Great City of Dawnstar - standalone patch with The Great City of Dawnstar, without JKs Skyrim as a requirement. Last checked against version 2.11 of Great City of Dawnstar.

The Great Cities - Minor Cities and Towns -simply master-swaps the GCoDS patch, seems to work fine, but consider this BETA. (a direct port didn't work very well, as it had NavMesh errors.Unless I'm missing something, both mods make the exact same changes to Dawnstar.) Checked against 2.0.

Guards Armor Replacer - Shifts placement of a few armor pieces to match the new guards' barracks interior. Last checked against version 5.5c

Helgen Reborn - Ensures Sorian and Orianthi spawn inside the new bounds of the Windpeak Inn during their quest. BETA. You will need a new game for this to work.

Holidays - Adjusts placement of decorations/fliers in the Inn so they match the new exteriors/interiors. Last checked against version 2.0

Immersive Laundry- Slightly tweaks placement of a few laundry items (and adds two poles) to match new exterior

Legacy of the Dragonborn - Moves placed gems/sulfur in every house to match new interior. Moves fliers/drunk marker in Windpeak Inn to match new interior. Moves placed object in Dawnstar Museum to match new interior. Moves three barrels outside the Windpeak Inn to prevent clipping with museum shipping crates, if enabled. Works with/without JKs Skyrim, no other city overhauls tested, but exterior changes are small enough it should work with most any. Last explicitly checked against verison 5.0.<something in the upper 20s> but the changelog has never noted anything which should impact the patch through version 5.2.1 Checked against last version of LOTD LE and it works

More to Say - just forwarding a persistency/spawn reference point for one NPC. Specifically for the More to Say City Guards patch. BETA- master-swapped for AIO version. Last checked against version 8.0.1

Morskom Estate - resolves a couple conflicts, gets the navmesh/landscape to play with one another. Last checked against version 2.2

Thrones of Skyrim - Created for use with, but does not require Thrones of Skyrim. Adds a small dais under the throne in the White Hall, and shifts a few things in the banquet table to match the new layout. Navmesh is untouched, and probably should be, but all NPCs seemed to route just fine behind the table so I figured better to leave well enough alone.

Wintersun - Faiths of Skyrim - Shifts a trigger box in Silus's house to match the new interior. Last checked against version 3.1.5.

Might Port

Expanded Towns and Cities(maybe, but I'm not familiar with source mod)

Immersive Wenches (maybe, but I'm not familiar with source mod)

Inncredible (very likely)

Mystic Condenser (maybe, but I'm not familiar with source mod)

Open Civil War (maybe, but I'm not familiar with source mod)

Perseids Inns and Taverns - Realistic Room Rental (maybe, but I'm not familiar with source mod)

Populated Cities and Towns (maybe, but I'm not familiar with source mod)

Skyrim Artwork Imports (maybe, but I'm not familiar with source mod)

Skyrim Reputation (maybe, but I'm not familiar with source mod)

Skyrim Immersive Creatures (very likely)

Skyrim's Unique Treasures (maybe, but I'm not familiar with source mod)

Snazzy Furniture and Clutter Overhaul (very likely)

Will NOT Port

AI Overhaul SSE(not applicable to LE)

BadGremlin's Collection AIO (not applicable to LE)

Better Dynamic Snow v3+ (version not applicable to LE)

Blowing in the Wind/JK's Skyrim (JK's Skyrim SE is too different from the LE version to make this patch work)

Dawnstar Overhaul (not applicable to LE)

Distinct Interiors (not applicable to LE)

Embers XD (not applicable to LE)

Great Cities/JKs Skyrim (JK's Skyrim SE is too different from the LE version to make this patch work. needs completely new patch)

Immersive Citizens - AI Overhaul (will NOT port, due to permissions)

Keep it Clean (not applicable to LE)

Lanterns of Skyrim II (not applicable to LE)

Medieval Lanterns of Skyrim/JKs Skyrim (not applicable to LE)

JKs Skyrim - No Snow Under the Roof (JK's Skyrim SE is too different from the LE version to make this patch work. needs completely new patch)

Outlaws Refuges (not applicable to LE)


Installation
Use a mod manager/organizer to install, or drop the loose files into your Skyrim data folder. Patches should have their appropriate masters set, and should be loaded after any mods which they are patching. Some of the fixes in question are on persistent objects, and may require a new save.

Compatibility
I don't believe this should introduce any incompatibilities beyond anything which may be present between base mods. Let me know if you hit anything

Credits
Bethesda for Skyrim Special Edition and the Creation Kit
ElminsterAU for SSEEdit
JPSteel2 for COTN - Dawnstar
Kris Takahashi for Interesting NPCs and KaptainCnucklz for keeping track of it on Nexus
the1yunesco for his 3DNPC Patch and re-upload permissions
ra2phoenix for providing me patches to upload which are combinations of other
existing patches, with manual clean-up. One of the existing patches
which is included as part of it references Bring Out Your Dead by Arthmoor
fenrir0054 for the BDSv3 patch
mnikjom and SpiderAkiraC for AI Overhaul
UNI00SL for Amulets of Skyrim
BadGremlin for BadGremlin's Collection
sialivi for Blowing in the Wind
aviform, EpicCrab, DoubtSuspended, PhysicsFish, and Daniel Hodge for Cheesemod for EVERYONE
Nazenn for Cloaks of Skyrim
Antistar for Clockwork
dwemer156 for Dawnstar Overhaul
Lollia for Denizens of Morthal
Sokkvabekk for Distinct Interiors and Outlaws Refuges
Shadohz for Elder Outfit Overhaul
mindflux for Embers XD
anamorfus for Enhanced Lights and FX
Robbie922004 for Equippable Tomes
missjennabee for Expanded Towns and Cities
BreezyBuns for COTN JK Great Cities Patch
soldierofwar for The Great City of Dawnstar and The Great Cities - Minor Cities and Towns
NordwarUA and DanielUA for Guards Armor Replacer
Mike Hancho for Helgen Reborn
isoku for Holidays
Shurah for Immersive Citizens - AI Overhaul
nerdofprey for Immersive Laundry
lordkoz for Immersive Wenches
NeverlessWonder for Inncredible
Sthaag for Keep it Clean - A Bathing Mod
wizkid34 for Lanterns of Skyrim II
icecreamassassin, SirJesto, and the LOTD team for Legacy of the Dragonborn and for answering a couple questions in discord
mathy79 for Medieval Lanterns of Skyrim
jkrojmal and Teabag86 for JKs Skyrim and the Arthmoor All-in-One patch which was given permission to re-upload with modification
abramcf for More to Say
DarkFox127 for Morskom Estate
Dave0523 for Mystic Condenser
SkyrimFantom and Teabag86 for NSUTR - JK Compatibility Patch
Prometheus for No Snow Under the Roof
simtam for Open Civil War
GSA2011 for Perseids Inns and Taverns - Realistic Room Rental
the Sands of Time team for Populated Cities and Towns
SenterPat for Skyrim Artwork Imports
dcyren for Skyrim Reputation
clintmich and icecreamassassin for Skyrims Unique Treasures
lifestorock for Skyrim Immersive Creatures
gutmaw for Snazzy Furniture and Clutter Overhaul
kelretu for Thrones of Skyrim
EnaiSiaion for Wintersun - Faiths of Skyrim

They're the artists who did the real work - go and give them a download and endorsement. I just made my best attempt at getting things to play well together :)