If you've spent time on the Nexus website, several modders have already done precisely what you've suggested - to the point I hope Larian go over, look at it ... and steal the idea (with credit where due!).
Not the only one hoping when they begin reaching the endgame just prior to V1, that we see some serious upgrades to customisation.
Honestly i didnt even check Nexus yet ...
Last time i was there it was for skyrim, and they required me to make an account for downloading the mods ... i mean i get it, but its anoying to keep registering somewhere, then deleting tons of spams of "super important changes in terms of using" -_- or mess with settings, etc. etc ... basicaly, when i dont need something, i dont register there ... so Nexus is on my personal black list for around a half of decade +/-.
But if you have some specific mod in mind, feel free to share!