I made a cover for the cargo area. I Used 1/4" fiberboard? from home depot. it was about 7 dollars. it didnt work out too bad so i thought i would share the template. There is a reverse curve about 6" from the edge. if you realize its not one big compound curve it will probably work better. There is enough room to put trim around the outside on the back. I havent finished yet, but i believe the template is functional if you cant be bothered or dont know how to make the template. Its not perfect,, but i was pretty happy how its turned out so far. i will ry and answer any questions but i tried to write everything you need on the template.