I have been putting a cage in my 84 Z28. All going well although a lot of work to make things follow pillars and be even within small amounts. What is your opinions on the spot for the rear supports for the main hoop to attach to the deck. The area around the top portion of the spring mounts looks good. The area aft of the springs is flat but requires the fuel tank to be dropped ( car will have a try at bonneville and that requires a plate on the bottom side) , way back to the rear sub frame is doable. Opinions please.