I want to put a targa top on my 76 malibu 2 door. I have been told that I need to brace the frame due to the roof being cut out. Does anyone have any idea how much, where, what type, etc. of bracing I would need to do. If anyone has ever attempted this before I would greatly appreciate any advice they might have. The local body shop is more than willing to make the targa top (cut out and fabricate) but won't guarantee the body won't "sag" in the middle. As I said, any help would be greatly appreciated.

Thanks[]