Thanks Kazoo!
Im 3" too short on the back of the camper for the tail lights height wise but all the other dims are workable. Ill have about 12-14" of rear over hang depending on how much C pillar I remove.
Spot weld and seam seal a bulk head on the rear, cut a pass through in the front of the camper and route power and AC back. And fab some mounts off the frame to bolt the camper to.
2500 with 454 would be ideal..
http://pueblo.craigslist.org/cto/4551476150.html