ACD is where I got my carpet set. You can find them in Hemmings. They are supposedly the manufacturer for most of the suppliers out there. Not really sure of that, but they are the largest mfg. of auto carpets. Don't throw away the plastic sleeves that are on the carpet where the seat belts come through. No one seems to make them. I threw mine away thinking that new ones came with the carpet. Wrong.
I saw an ad in the restoration society newsletter from a company by the name of Romeo. They advertise carpet that matches factory fit and finish and color, guaranteed. I called and a month later they had no idea who I was or what color carpet I had ordered. Went back to Corvette Central and got it in a week. I t took me three nights to install. Looks great.