I have the ability to build molds and fiberglass components like that, but I've already got all the fiberglass parts I need to make the camper - I'll be using a set of panels from the Wrangler Safari Cab hardtop. My Safari Cab hardtop:
A set of panels out of the same molds, configured for a Jeep-tub camper top:
One benefit of using these panels is that once I design and build the pop-up mechanism and canvas, the same basic design and parts could be used to build a Dormobile-style pop-top for a Wrangler.