I have been thinking of building a bed platform for my 06 similar to scott's. I wanted to build it flush with the top of the bed and make it out of metal like he did to keep rain, dust and thieves from the stuff inside. My concept consists of an aluminum-skinned frame made out of angle iron. The l-shaped angle iron would sit partly on the on the top and the other side could be attached to the rails using bolts and hardware. You would have to crawl inside to undo to bolts in order to get it off and you would have to install a lock in the tailgate to keep things secure, but I think you could easily make it tough enough to handle the weight of the eezi awn. I don't think the rails are tough enough, but the angle iron would put the weight on the top- not on the rails themselves.