I own '65 GS #19 in the database. Chris' old car. Someone rolled the lips during the drag racing era (a somewhat common mod), and I wanted to re-do them back to some semblance of stock. Because the rear portion lower part is intact and in good shape, I just needed the halo from in front of the wheel opening to about 2 oclock. I decided after checking as you did to go with 64-65 Chevelle patch panels. When I got 'em I was pleasantly surprised at how usable and how close they are to the GS. I'm not looking to build a 100 point original piece, but a good solid protouring rod. Check them out on ebay, they may be something you can use too. I just got them last month, so haven't installed them, but will do a thread when I do.