I am somewhere between y'all.
One Scratch Built
2 Generic Jammas (bought at a junk yard working, still debating on how to fix em up)
If (when??) I build another it will be more portable--I scaled up the Lujsid design (big dummy, me) and the thing is massive--I would (or will) go with a modular, coctail, or mini for the next one.