Sorry if this is a stupid question. But how do you get the car body onto a rotisserie if you don't have a post lift in the shop? I "assume" you get 4 or 5 of your strongest friends and a couple cases of their favorite beverages.
If you have an engine hoist use that and a strap run thru the body mounts in the front. Then a couple of buddies at the rear to lift. If you have access to another engine hoist, then use two. Or bolt your supports for the rotisserie on first and hoist from them.