This comes up from time to time. I've spent a lifetime building up 4WD's. Most of those are gone now, but what a ride! I would say most of the big 'projects' start out with great fervor, and diminuendo to a stop once the missionary zeal has faded. If you have it in your bones, go for it.
As a second opinion, why not look into putting a AirStream or Avion trailer body on the truck with the same length as the bed, only now without the bed. I've seen a few of these and they look like form followed function. With the frame removed, you'll have to fab up a connection to the truck frame, hopefully a floating 3 point system. The good news is the tanks are already there. So are the electrical and plumbing. It would be a fine Armageddon Machine. Another would be finding a hard-side pop-up trailer, about 16-18 feet or so, and having a frame-echtomy. This would limit the height for traveling on the deuce and a half.
regards, as always, jefe
