After I had them sand blasted, it was clear that the lower 1/3 was useless, so I trimmed off what was left. I am thinking of mounting them upside down, without any latches etc. welding the cut edge to the lower edge of the top rail tubing. Positioned so that the sheet metal lines up with metal of the cab and maintain the "reveal" that is created by the bed rail profile. If this does not come together, I will have to make up some new panels.