When I started the restoration of my GT/CS, the very first thing I started with was the restoration of the grill. I found a company in Plymouth, MA that had aluminum "tinner's rivets" for the grill, and all I could purchase was a 1 lb. box of these rivets. These rivets match the specs found in Paul's second book.
So, here is the deal, it takes 10 rivets per grill. If anyone on this site would like a set of rivets, send me a SASE and I'll send 12 rivets to you at no charge, until the supply is gone! If you have more than one GT/CS, I'll send more than one set.
Mail the envelope to: Russ Furstnow, 4030 N. Lugano Way, Flagstaff, AZ 86004 Hope this helps,
Russ