Horizon 1.9.3+ required

No Combat Boundaries - https://www.nexusmods.com/fallout4/mods/6752
Includes DLC patch as well

Lone wanderer fast travel - https://www.nexusmods.com/fallout4/mods/17736
Credit: Original 1.8 Official patch was made by Starguardace

1.11 Edit: Fixed some of the components and message text so its not as ambiguous

Unique Settlement Traders Protected - https://www.nexusmods.com/fallout4/mods/47194
Compat with Quest dependency quest fix and Tina De Luca voiced as AI. Just load both above Horizon

HoloTime - HUD Clock Widget - https://www.nexusmods.com/fallout4/mods/20300
1 record edit to tag the holotape (silly i know, but for the OCD ppl)
1.01 Edit: Also removed the silly value, no get rich scheme!
1.02 Edit: Forgot to set Z_Horizon as master :p

Danse Wear Your Helmet - https://www.nexusmods.com/fallout4/mods/42882

Minutemen Watchtowers - https://www.nexusmods.com/fallout4/mods/67199
This requires just the base mod listed here - Minutemen Watchtowers Legacy
However this patch is compat with 4estGimp - Minuteman Watchtowers (Redux) plus Legacy
Loadorder on left side of mo2
Minuteman Watchtowers
Minuteman Watchtowers Legacy
4estGimp - Minuteman Watchtowers (Redux) plus Legacy
Horizon 1.9 - Minutemen Watchtowers patch

Diamond City Expansion - https://www.nexusmods.com/fallout4/mods/21853
Diamond City Expansion eXopatch - https://www.nexusmods.com/fallout4/mods/66724
Credit: Original 1.8 Official patch was made by Greb761

Updated for new Exopatch vers 1.2.3, Compatible with up to vers 1.2.7

This patch now requires DC:E Exopatch as well. It adds various bugfixes to lighting, navmeshes, etc. Also removes havok physics to the collectible baseball cards. I consider it mandatory for the mod itself. 

Loadorder on left side of MO2

Diamond City Expansion
Diamond City Expansion Various Patches
Horizon 1.9.x
Horizon 1.9.x Patches
Horizon 1.9 - Diamond City Expansion Patch
Diamond City Expansion - XDI Service Cost - AAF
PRP Lite
Enhanced settlements patches
Diamond City Expansion - eXoPatch
DiamondCityExpansion-eXoPatch Music Enabler

Loadorder of right side of MO2 for Plugins

Stm_DiamondCityExpansion.esp
DiamondCityExpansion-eXoPatch.esp
Diamond City Expansion Various Patches (different ESPs)
Z_Horizon.esp
Horizon 1.9 Various Patches (different ESPs)
Z_Horizon - Diamond City Expansion Patch.esp
Z_Architect_extras
PRP lite .esps
Z_Architect_Empire.esp
Z_Enhanced Settlements
DiamondCity-PreVis.esp


My other HZ 1.9 patch pages
Horizon 1.9 - Fallout 76 Mutation Revamp Patch - https://www.nexusmods.com/fallout4/mods/72420
Yowyow's Horizon 1.9 Creation Club Patches - https://www.nexusmods.com/fallout4/mods/71130
Yowyow's Horizon 1.9 NPC Patches - https://www.nexusmods.com/fallout4/mods/71074
Yowyow's Horizon 1.9 Gameplay Patches - https://www.nexusmods.com/fallout4/mods/71072
Yowyow's Horizon 1.9 Settlement Patches - https://www.nexusmods.com/fallout4/mods/71063
Yowyow's Horizon 1.9 Clothing and Armor Patches - https://www.nexusmods.com/fallout4/mods/71050
Prescription Glasses (Four Eyes Perk) Horizon 1.9 Patch - https://www.nexusmods.com/fallout4/mods/71849