I have also been thinking about layout. Here's one take on it - comments are appreciated. There is ample storage in the "Garage", bedroom (overhead and at foot of fold-out bed - not my preference but space is limited, and in the kitchen, dining room area.
Additional note, the co-pilot seat swivels 180 to face backwards and function as a chair for the dining room.
Another note, the driver's seat swivels in position 180 to face backwards and utilize the space behind as a laptop/workstation area.
Fridge is under counter, microwave is in the pantry across from the sink.
Back door will be non-op/locked closed as to not have a surprise for those behind the toilet. I suppose we could also use it to moon tailgaters.