Bad idea?

I am ready to work on the underneath of my 68 Cuda vert. I don't have access to a rotisserie so was toying with the idea of putting the bumper brackets on the shell, bolting pieces of angle iron to them and using engine stands front and rear bolted to the angle iron to make the shell rotate. I have a PHD in farmerizing but about a 50% success rate. See any problems with my idea?
Sorry if this post is in the wrong place.