That Airstream Sprinter Westfalia I mentioned had built into the cabinetry strategically placed steps to get into a higher bunk. I was intrigued by that idea. I have some ideas.
It will be a wet bath with plenty of elbow room at 30" x 38". The ARV standard bath is longer but only 23" inside at the widest point from the outside wall. The black tank has to be worked out but preliminary design will be 12 gal. vs 18 gal. we presently have. We could put a cassette in that will have access without having to go through an outside wall but through the back inset wall so it is more stealthy.
17" deep to the plywood floor edge and about 35" wide. The back doors are beyond that so there are a few more inches in depth, and to the height of the van about 75". My Dahon Mariner D7 folding bikes are 33" wide, 15" deep and 25" high in the folded position. I am thinking adjustable shelving so you can get whatever you want to store in that space or no shelving if you want which ARV claims they can get two regular bikes hanging in the space. This is Advanced RV's Dugan video, their first short Sprinter with talk about hanging bikes.
Those are interesting concepts. Has anyone installed either in a Class B?
One thing ARV does is provide a shower head with a dead lever like a garden hose. There is no fumbling around with a cylindrical poke back and forth shut off that almost requires two hands.
My average for dumping and picking up fresh water is an average of about 13 days. Even if you wanted to go off-grid you still have to come into civilization for food, gas, laundry, water, dumping, etc. within that time or maybe sooner like a week or less. Also, I don't stay in one place more than four days usually and those instances are usually more civilized places. So when you are on the move you are going to have access to civilization. Then there is still grey water disposal that doesn't go down a shower drain. I don't believe in the Dave Matthews Band idea for dumping on the ground.
Unless there is a compelling reason I probably wouldn't consider at least in the north American hemisphere.
