This is the guchie wood version. Thanks go to wormy for some ideas and guidance. This one has hardwood uprights throughbolted to the trailer, 9mm waterproof ply for the paneling. Interior racks unscrew to leave an enclosed trailer if needed. Back door is western red cedar t&G planks. The trailer is a 12 years old 7x4 gal box trailer and had an extended drawbar from new so works well with the 2.9m length of the interior. I can add another row of racks under the first two if needed, but for now its ample for all my usual gear and camping stuff. Just finished in time for a trip to sydney via hopefully Burrum, Caloundra, Wello, Iluka and Hawks Nest. Hope this doesn't kill the green arrows for the next couple a weeks.