Another thing to keep in mind (just found this out, actually), that with an adapter, my B&J (or any press camera) bolts right into my Durst enlarger right where you would normally bolt the head in. Using semi-crude measurements, it seems alignment is quite good, though you'd need a plate or a macro rail to get the lens far enough away from the baseboard for anything bigger than an 8x10 If you found a graflarger, that would allow you to do 4x5 on a compact Durst, too.

Actually, building a graflarger type attachment wouldn't be difficult either. Seems my Durst is based off of a frosted bulb reflected off a white plate 90* into a condensor. A straight diffusion head would be even easier.