very nice man.
i built something similar to this, well kinda, but it does hang the top on the wall
i usec metal brackets in shape of square C, and drilled holes for the rear latches to go in and once inserted, turn and lock.
i still have to figure out how to support the bottom(well front side of the hardtop)
thx for the pics.
BTW, quick request, can you tell me the length and diameter of the 3 pipes used?