Sorry for the teaser. I wanted as many people as possible to click and read since this simple mod makes life so much easier and costs next to nothing. A picture is worth a thousand words:
One on each side, cut from simple aluminum bar stock. One hole drilled through the fiberglass where it won't be seen. No more spring loaded thing on the firewall that sucks. No more expensive ribbed thing (also drilled in fiberglass) down the center spine. These hooks hold the cover up on 2 sides. No brainer, just make sure to create a lip so that it holds it properly.