Some Assembly Required is a cool mod that has a small problem - the perk requirements for repairing power armor pieces aren't visible, leading to frustration when the game won't let you repair them. This mod instead has you create repair kits with the same perk and resource requirement and use those to repair the armor pieces instead.

What this mod does:
Adds craftable Power Armor Repair Kits, one for each type of power armor. They can be crafted in the Chemistry Station.
Removes the resource cost requirement from repairing power armor at the PA station and replaces it with repair kits.
Has support for Creation Club and mod added power armors.

What this mod doesn't do:
Allow you to repair power armor in the field. You still need to repair it at a PA station, it just uses kits now. 
Change the resource requirements for repairing each piece. Each kit has the same crafting components as the recipe for directly repairing the part did.
Require Some Assembly Required. This mod can be used standalone, if you wish.
Take up precious plugin slots. All files are ESL flagged.

Supported Power Armor Suits:
All vanilla power armor
Far Harbor's VIM Power Armor
Nuka World's Nuka Power Armor
Automatron's Tesla Power Armor
CC-00 Astronaut Power Armor (Creation Club)
Hellfire X-01 Power Armor (Creation Club)
X-02 Power Armor (Creation Club)
Horse Power Armor (Creation Club)
Standalone Construction Power Armor
Excavator Power Armor
Enclave X-02 Power Armor
Hellfire X-03 Power Armor
T-65 Power Armor
Tribal T-45 Power Armor
Hellcat Power Armor
Scavenger Power Armor
Storyteller T-49 Power Armor
Institute Power Armor
Red Shift Power Armor
NAVI - Brand New Power Armor
Enclave Power Armor
Midwest Power Armor
Ultracite Power Armor
SE-01 Power Armor
Children of Atom Power Armor
Bastion - Soviet Power Armor - community choice
Tesla X01 - Automatron Style and Full suit - Full Suit Version Only

Armor You Want Not Listed?
Check here first!
Kat's Power Armor Repair Kits - Unofficial Patches and Consistency Tweaks
A very lovely modder has created some patches for armor I haven't gotten around to and made some tweaks. Go check them out and endorse them. If neither of us have a patch for the modded armor you're using, leave a post in the comments and I will do my best to make one for you.

Requirements
Does not require Some Assembly Required.
Far Harbor and Nuka World support is done via separate, optional patches.
The original files for modded power armor is required for each patch. They do not include the armor itself.

Installation:
Download with MO2/Vortex.
Activate it.
The FOMOD Installer will auto-select patches for you.
Keep it pretty low.

Uninstallation:
Installation in reverse.

Don’t add or remove mods mid save.
Don’t file a bug report unless you tested your issue with no other mods active.

Compatibility:
Incompatible with anything that changes how power armor is repaired.
Incompatible with mod-added power armor suits that do not have a patch - they will use the standard repair process.
Compatible with basically everything else.

Mod of the Month August 2021! 
Thank you so much!