We wanted to design our own hinge to work without moving the 3/4" trunk hoop. The hinge was bonded to the decklid with 3m panel adhesive but it did not hold up. We ended up bonding in a piece of 0.80 sheet metal with studs welded to it to support the hinges. It worked out well and had the added benifit of letting us define the curve of the upper deck lid to match perfectly with the body. This took forever to get perfect and alot of trial and error but the results were worth it.