Hope you guys out their can help me. I have a truck cap on my truck, and want to put my Harley in the back of the truck, problem is that the cap is too low to put bike in bed. do they make any sides that i can put on bed rails then bolt cap on top of that? i need to raise it at least 12 inches. I thought of making some with some 12 inch aluminum channel, but after looking at the price of 12" channel aluminum, thought i would ask you guys first. I have been looking on line for something like that but with no luck. My cap is fiberglass but a aluminym or glass bottom frame should work, if they make such a thing.