Thanks very much for this information, I'll cancel that order and look for the motorhome setup. I can go look at a motorhome's system but first I'd like to know what you envision it to be, would I keep my pedal and put a MC under the floor to work off the existing petal's bar? I can't imagine how any booster can be remote from a MC. If the MC has to be 1.25" this may take some time. I would think that going slightly bigger, say 1.375 might be just as good. I haven't taken the MC off yet so didn't know it was 1.250. I wouldn't have gone smaller.
Hotrod when you say the single chamber MC loses it's boost when the engine dies, but you still have pedal without boost, what about if there's a fluid leak and you lose that one piston (chamber)? What about the need for a dual chamber MC? Doesn't seem so safe to me, but I don't know much about this. I replaced all the leaking slave cylinders but the master was mushy.
BTW, do you happen to know if those hycrovac's have a rubber membrane in them that would dry rot sitting on the shelf? That was NOS in the Ebay ad. Many thanks