I am planing to have side doors. I was planning on making it flat at the rear but if it went up in the rear like this one I could almost stand at the rear to change clothing and such. the idea of using the lower ramp as a base to keep the upper lid up looks worth while.
I had wanted to put it in a trailer like this then I realized when I was talking to Peter from Mac Bult teardrop trailers that I could have as many trailers as I wanted. The have no engine and there for plate tags and insurence would be little to nothing. I could even get rid of my truck if I had use of a unit strong enough to pull a trailer holding heavy things I would put in the rear of the truck. Unless I get a 5th wheel, or make one. like the skamp.
Andrew showed one being pulled by a mini car with a window at the front slant.
I am also thinking of a pull out rear floor rather then a drop down rear floor.
like you see now in utility vans like this
http://cargobody.com/rolling_cargo_deck.htm
it could drop into place. The galley could sit on the end and be pull out.