There was a company out of Idaho Falls, Idaho that was taking ARE Raven Shells and putting Hydraulic lifts in each corner of the bed to raise the shell. It then had a flip out bed to the passenger and driver sides. It was real similiar to the tent trailer idea.
The company was founded by a couple of guys that worked at Idaho National Laboratory during the day and built these in a shop in IF on their days off. I know a guy here in town that has one on a 92-96 series Ford. I will try and see if he will let me takes some pics of it. It is a pretty neat setup, however it takes up most of the area infront and inback of the wheel wells. And he told that he paid almost 5 grand for it. It seemed a bit steep.