This was a bit of an engineering problem. If I had a welder, I would have modified the engine stands to make the heads rotate parallel to the ground. As it was, I left off the front casters of the stands and that put the heads at the correct angle. The front stand is attached to the body hinge points. The rear stand is attached to the triangular tabs on the horizontal 3/4 inch tube. I tried to get the rotation points approximately in line with what I thought was the center of gravity of the frame. If I could add about two inches to the height of the engine stands, the frame would be able to be rotated to the point where the rear cargo 3/4 inch tubes contacted the engine stands. As it is, the door hinge mounts on the frame hit the floor, so the frame rotates 90 degrees each way from vertical.