Rcooked;
I ordered and installed a 20' system last month and had some difficulty with the instructions. If your mechanically inclined, you can figure them out, but be prepared for some frustrations. Once assembled, I was satisified with the end result, but it took 2 of us about 10 hours to assemble from box to bubbles.
I'd recommend against ordering and installing the hinges as I believe the are flawed in their design and could potentially let loose of the tower legs (that could be ugly).
Good luck-
Joe
