I posted a link a while back to this guy's earlier ad:
Ford sportsmobile camper van parts and running driving 4x4 chassis
It appears that the SMB rolled and is totalled, based on the photos there.
He's selling the "running driving" Quigley rolling chassis with 60k miles and the V10 for $3500. If he was anywhere near local I'd seriously consider grabbing it and moving my van's body to it. In fact, the other day I was momentarily fantasizing about how I could make this happen by taking advantage of some friends I have in Alaska, but figured it would be too much hassle for the payoff.