Thanks great info. Sorry for the late response. Alert wasn't set up properly.Sure, not sure how specific you want, but I'll give it a shot. I built both pieces to some extent. With the lid, I built the skeleton and took it to a metal fab shop near me and the bent the metal with a single sheet of steel. They had to order I think a 5x10 sheet of steel to do it in one piece, but I think it was worth it. I THINK it is 14 gauge. the skeleton has a perimeter of 1" square tubes and the ribs are 3/4" sq tube. With the rack, I made sure the guy I ordered my metal from knew I wanted one tube to go inside the other. The hardest part of the rack design is figuring out what to mount it to. I just welded tubing to the front of the frame and then built a bumper to attach the back of the trailer. Rack is lifted via 4 electric actuators, 200 lb, 18" stroke I got off of eBay I think. They were cheaper than a comparable gas strut and I don't really have to worry about getting the weight calculations right on for lifting and lowering. It goes up and down via a switch on the side of the tongue box. Let me know if there is any other information you would like and I'll try answer. I noticed your out of KY, That second picture is actually at Land Between the Lakes.