Is there any info on the construction process that details the the corner intersections? I've been digging around here for a few weeks now and I've got lots of ideas now. I've found a site that sells truck trailer body parts and I think I have an idea of how that works but it would be nice to find an exploded view of how those parts go together. I'm also interested in the rounded corner body's that I've seen but I cant find any info on how they work or where I can get parts for that. I'm guessing that the frame is formed and its just the sheeting wrapped but how are the corners done? Thanks in advance, Owen