I've adapted biggieboy's large workshop mod for XCF, complete with research and ufopedia fluff article.
Producing alien alloys takes time, money and - most of all - workshop space, especially if you also need to built prototype fighter craft from scratch in two days.
This mod combines five workshops into a single, 2x2 workshop facility. 250 workshop space because your engineers get to use fancy alien alloy tools (let's pretend it's not because i was tired of industrial bases consisting entirely of workshops). Also comes with a bit of additional storage space.
Original terrain by biggieboy, modified by me (no, it's not
also a hangar so no pesky aliens invading the workshops) with a totally new, crappy base sprite.
Let me know if you encounter any bugs and/or if you think the stats need changing.
EDIT:
Fixed some terrain objects blocking corridors. New version attached.
Fixed missing provideBaseFunc entry. New version attached.