The common approach for making a rotisserie for an MGA body shell or frame commonly starts with two engine stands as a shortcut to the rotational axis, then fabricate some fixture pieces to attach the frame or body to the rotating parts. This one comes from Giovanni Delicio in Obrigheim, Rheinpfalz, Germany. The long side rails are bolted in place so it can be disassembled for storage. It helps a lot if you can position the rotational axis in line with the center of gravity of the body so it can rotate freely and stop at any angle.



Another one from Dana R (Restoman) in Amston, Connecticut, USA: