I raised my 37 panel up high with two camper jacks ( the old style ) with a wooden beam through the doors. In the rear I used a large roll around bumper jack. Vary solid. Up about 3'.left the floor in.The floor is structurel. I'd be afraid of the body collapsing. I guess you could weld in a bunch temporary braceing.
I may be wrong never used a rotisserie. That's my 2 cents. Someone with more experience will chime in.
