Given the number of guns, that's a lot of new workshop projects. But with the categories and quicksearch, that's not nearly as bad as with the vanilla UI.
I think it would be nice for weapons to depend on pieces instead of other full weapons. My stores are still full or random crap "just in case". You never know what devious component Dioxine puts as a requirement
maybe the best gun in the game requires a black march smg to manufacture and, knowing myself, I'll have sold my stock of whatever is needed an hour before the research completed thinking "I'll never need that crap again!" After my Kustom Shooty gun experience, I now have a dedicated hoard base where I ship pretty much every weapon and funky sort of rare item I find.
Having ~6 conventional weapon parts like the other ones would make it possible to salvage from whatever encounter and lessen the dependence on fighting the right faction and then getting the right weapon.
That does change the availability of some weapons though, potentially making Kustom Shooty guns and reaper rifles more common. But those aren't really general issue guns to spam so it should be ok.