Well its been a long time since I started this thread. But after almost 3 years of ownership, I'm finally starting disassembly of 2227. Today I removed one of the side scoops and wanted to share my finding on the rivet design. As I was told years ago, the side scoop only has 2 rivets. One on top and another on the bottom located closest to the opening. The rivet is two parts and plastic. The hole in the body of the car is about 5/16 of an inch and hole in fiberglass scoop very similar in size. The rivet assembly has an insert which goes in first and then the rivet rod part is pushed into the insert. I will load several pictures of the plastic rivet. Previous owner of my car left it sitting since late 70's or early 80's- very unmolested. what I'm listing may be common knowledge, but the mounting and design configuration surprised me. I will load pictures after this post. In good faith everything Im reporting is what I've observed. Thank you for reading, Fred