Glad to see I'm not the only one who thought this was a good idea....
I got mine for hunting, and wasn't planning on really doing any thing to her, just throw in a cot and know that it will be better then two weeks in a tent up in the mountains. So now It's getting insulated, cabinets, and a fold down bed, windows, and the back doors will get removed and replaced with a homemade door that will swing open to the side to load my ATV and will have an rv door in it . Since I hunt in bear country, Black and Griz (northern Idaho Pan Handle), I'm not going to bother with sink and stove since we cook and eat away from the sleeping area.
So I was glad to stumble across this site, lots of ideas.
I posted the before pictures in my album and will keep it updated, the old man already gave me a shopping list of materials he's gonna need, so hopefully this summer the pics will be plentiful and the progress will be smooth.