It sounds like mine is in similar condition to yours. It came in very nice general shape with three original holders, the rear track, the two stabilizers, a lensboard with an Ilex 5 flange (which works for the two main lenses I'm using with the camera), the original case, about 40 sheets of FP4+ and three processing trays, and the bellows cracked everywhere inside and beginning to come unglued outside. The previous owner said he had bought it from a Chicago studio, where it had stayed indoors most of the time.
I bought it knowing I would likely have to replace the bellows, but its just holding together well enough that I thought I might try and patch it with the B&S kit, so I've been going through it, regluing all the folds and patching where regluing isn't enough, little by little. I do about 15-20 minutes in the morning and the evening, and it's slowly coming together. From the outside it looks pretty good, and I've got no leaks at this point, so from here on in, it's just a matter of finishing up the regluing and putting an extra coat or two of the patching compound so that it doesn't come apart in the field.
I also had Barry Young make me a second tripod socket which I'll use with an RRS B35 QR plate, so I can do verticals without the camera twisting on the tripod head.