If you're at all handy, save yourself some money, improve the structure of the Reptibreeze, and skip the dragon ledges.
Go to a home improvement store and pick up some aluminum stock—bar, angle, or channel (whichever you prefer) and some stainless sheet metal screws (#8 x twice the thickness of the aluminum).
Cut the aluminum to fit inside the frame, drill a hole at each end, and attach with sheet metal screws.