No promises, but I'll do my best to get attention on this matter, as I'd like to support custom weapons a bit better too.
Righty-o. Thanks Kevin.
Can't say I'd need the first 2 requests, as I will get rid of the RNG as best as possible, but the last 2 would indeed be a nice consolation if new categories and assets will stay a no-go.
Removing deltamods could be useful for controlling RNG, as they're what determines the random bonuses applied to items, both picked up and when combined.