Re: busses with bike storage room...???
I have no scanner, but our layout puts both beds as fold up models. No way around it if you want to have a garage in the back. The "master" bed folds up against the wall, and has the dining table on the bottom of it, which can fold down, or stay put.
The kids bed is back farther, and has a low desk/table under it which she can use to color at, play games, or whatever.
Wish I was any good at cad/sketchup, I would simply show you there.
We are going to be storing two motorcycles in the back, along with a few bicycles hanging above them.
The third bike will be relegated to the tongue or deck of the tandem axle car trailer we will have to get to bring our jeep around wherever we are. It will also house some small storage bins for other bits and tools.