Looks like Benny's (forum member Rolacoy) site is down.
I went looking for it after seeing a photo of the rear bed in Leisure Travel Van's new Chevy based Free Flight. It looks like it would be nice for reading and watching TV.
Free Flight Interior
I always thought Benny had a great idea
there. Here's what it looked like in his Roadtrek:
He had planned to use an actuator to easily control the adjustment: