In my photo gallery is a rotisserie plans that I got out of Auto restorer book,my friend made one for his 70 cuda,it was way over built for that car,it is strong enough to hold up your car with no problem. it is a very nice unit.
I made one 25 years ago to build stock cars on. I made mine out of spindles from a American Motors car. The spindale bolt on and can be used in a number of ways. I bolted mine to a triangular shaped base on each end of the car.You can leave the wheel on it and weld box tubeing to the wheel and fabricate brackets to fit the frame / body you are working on. If you leave the brake on it you can plumb in a bottle jack to hold car in desired position. Chevelle and El Camino spindles also bolt on and can be found with disk brakes. I will post photos if i can locate them.
Caution "must" be used as you seldom can rotate without help as finding center mass of car will be difficult and a counter weight bolted on may be nessary.
....Another idea is to make 2 overly large shaped stop signs (hexigons) out of 2x2 or 1x3 boxed tube. end result must be at least 6 inches wider than the car / truck is wide. with cross braces from side to side. bolt the car to the cross braces and have beer party for enough friends to roll the car to which ever side you want. You should plan ahead and make a 'kickstand' that can be bolted in place on one end or the other to keep from tipping over in the event it is lopsided in weight.