After posting this, I realized that I really didn’t need the light mount. The light would have attached to the 1” PVC just fine. At the time, I didn’t think the PVC was going to be thick enough to go up in one piece. If the construction ever falls apart, I may revert to it. I thought of 3D...
Keep this thread going! I know it's old, but there are some great ideas popping up. Newer materials might make it easier too. I like the body filler idea best, however I went with tb140803's idea and used a piece of PVC to mold a flat surface. I used a urethane light mount over top of the 1"...