O.K., l will try to steer the conversation back to the original question. If I can remember what that was.
No offense toward anyone, we're just an enthusiastic bunch!
In reading everyone's ideas, and in thinking about mine, I think you might consider a professionally converted bus. Mine is an '82 MCI, converted as a new shell by Custom Coach in Columbus, OH. Now, I'm not pretending mine is the best for everybody, but it might work for your situation. It isn't as flashy as some, but it IS durable. The laminate cabinetry isn't the nicest I've seen, and wouldn't have been my first choice, but after twenty-seven years, it still works, looks decent, every latch latches, and every drawer slides. One thing I don't like is the fact that the two basement a/c units and their ducts take up too much interior and bay space. You could trash those and convert to roof airs without too much waste. Mostly labor, and of course, the price of two or three rooftop units, depending on where you'll spend most of your time.
Mine came with a 12 kw diesel gen, but NO house battery set-up. I plan to add a small battery bank and an inverter.
Another advantage is the lack of high mileage since it was never a seated coach.
So far, so good. I hope you will look at a LOT of buses, then make your decision. The folks on this board are great. Good luck, we will be following your search with interest...and support!