I just used the stock piece and a spray paint can cap as a mold. I taped the paint cap to the stock piece and wrapped it in fleece, then coated it in fiberglass resin. After it was dry, I trimmed the edges and the stock piece and paint cap popped out and I was just left with the piece shown in the pictures. The fun part was sanding, layering it with body filler, more sanding, more body filler, even more sanding, spraying it with filler primer, and then a final sand before paint. I was initially thinking about selling them, but with the time that it took me to build and the pain in the @$$ install/running the wiring into the door, it just wouldn't be worth it for others.
