Here is what I plan to do once it is painted and inspected.
Total gut, I plan to remove all interior sheet metal and insulation. I want to use the spray foam to insulate the roof and walls. I will put down 1" foam boards in the floor and spray foam around to seal.
Before I insulate I want to raise the roof, but it is a Thomas. Unlike a BlueBird the walls are curved. Les Lampman was going to raise his roof and I see that he talked to Elliot Naess about how to handle this issue. It looks like he decided not to raise his roof.
I will take what they talked about and see if it will work.
I also plan to use dual pane RV windows. That means all the school bus windows have to go.
This will be a propane free bus. I will use diesel for heat, hot water and my generator. I already have two portable induction cook tops that I love, I use them in my appartment. I will be able to cook inside as well as outside, as in portable cooktops.
I'm using a composting toilet, so no Black holding tank. Just fresh water and grey water. Fresh water will be inside under my bed, no worry about feezing unless I run out of heat.
I want to be able to live off the grid Mon - Fri and then pull in on weekends to dump grey tank, fill fresh water tank and plugin to fully recharge. Between solar and the generator, with enough batteries, I hope that will work. It would be nice if I could stretch it out to two weeks.
The only thing I have not worked out is AC in the summertime for Durango, my boarder collie. There may be other things I have not thought of yet too.