We make no claims of compatibility with M4-78 or EE, regardless of version. It may work or it may not, that's up to the enduser to determine. TSLRCM is probably still fine, I don't think any radical changes were made.
K2CP is pretty innocuous at the moment, it doesn't make anything like the sorts of changes K1CP makes, so it's probably fine. But nobody has assessed the current status formerly as of yet.
I really do approve of this idea!
Might I request for a similar patch to be made for the following mod?
Movie-Style Jedi Master Robes by DeadMan merely does the Jedi Master Robe model while this mod listed above covers the Jedi Padawan Robe model in a very similar fashion to DeadMan's Master Robes.
I estimate that mod placed a file named (or named similar) "HK-50.utc" or something, a file like that is used extensively during the game and if it is inside the override it'd break every NPC with the tag "HK-50" for example.
What is sadder, yet beneficial for you, is that the restored items are restored in TSLRCM and M4-78EP.