There certainly are a number of medium format view cameras which offer full movements, alternatively you can just use a 4x5 with a roll-film back. Do you really want a focal-plane shutter for macro work with a bellows? It sounds like vibration city to me. With a bellows racked out for macro focusing and small apertures for the required DOF, you're going to have such long exposure times (including reciprocity, of course) that the old "take off the lens cap, keep an eye on the watch, put the lens cap back on" exposure method will probably work just fine.

Although that reminds me that when I had my Rollei SL66, I took many extremely sharp macro shots with exposures up to 10-12 seconds triggering the shutter by hand. The cable-release connection on that camera was stripped and I never got around to having it fixed. Damn, that was one heavy camera!