PS> just got a long piece of white siding from lowes for about $6. It is going to be way to thick, but it will give me a good margin of error. I will take pics and keep you all posted.
Seeing my TC is older, I don't mind drilling a few holes underneath to fit this, but I want to leave my truck unscathed. I plan on making an open ended triangle with it connecting on the two sides of the camper and coming to a point at the front. I will probably put some type of crossbeam in the middle to give it support and keep it from collapsing under the winds pressure. I plan on using a heat gun to curve the bottom edge to give me a way to mount it on my trucks top. I dont' want to scratch or permanently attach it so I might try to find some rubber substance and attach it to the bottom of the siding and hopefully it is heavy enough to stay put on the truck's top. If not I will just add another crossbeam for support.
My goal is to do this for under $20 and make it easy to replicate for others on here(no charge of course, except maybe a beer if you ever run across me ;) )
Wish me luck :B MP>