Brett, I hadn't thought of selling them as I was just making them for my car. Since these are 1977 only would there even be a market for them?
I also had the emission label decal reproduced to factory correct in everyway including size, color, correct letter and number fonts, using 3M Scotchcal 220 fim silver / black print with a clear layer. As reference the reproduction 1977 W72 400 with automatic emission label currently available is incorrect in size, color, fonts, etc. Since I do not have a GM License to reporduce, the company I used would only print me three copies for my personal use. Set up cost and the three decals was $150.00.