hi. i'm new to this page but i would suggest using important info from the past. for example i want recreate the yenko stinger stripes on a vega but like you said Phoenixgraphix.com are the only ones that have them and ebay, but check this info about the yenko
"Yenko Facts
1. The stripes on the COPO cars were not put on by outside detail shops, but put on at one of Yenko Chevrolet's buildings near the main Canonsburg dealership. The cars would be taken from the storage lot and taken directly to this building to have the stripes applied. Unless the car was to receive add-ons, such as gauges, headers, etc., the cars never were in the main Canonsburg shop. The reason the stripe location varies from car to car is that many of the stripes were applied by teenagers working at the shop, including Don's daughter, who received $5 to wet the car down, apply the stripes, and smooth out the air bubbles with a squeegee. Recently I spoke with a Yenko collector who had an original stripe car that had a one piece stripe on one of the rear fenders. So the next time some one tells you that your stripes are wrong, tell them that there is no one, right way. Each car would have been unique.
2. When a customer bought one of the supercars from Yenko, the customer had the option of accepting the car as it was, or could have the items added to the car, such as gauges, headers, scattershield, mag wheels, etc. If items were to be added, then the car was taken to the main Canonsburg shop to have these items added. These items would be added by Yenko's race mechanics, who worked on Don's race cars. If the customer had the desire and money, the car could be built to meet their wants. This is why, even though all of the cars started with the same standard equipment, several of the cars were bought new with the other equipment. Yenko usually had a demo car or two that might have a couple of these non-standard items."
i got this info from
http://www.yenko.net/facts.htm
here is another idea. contact Phoenixgraphix.com and try to become a registered reseller with them since you have a registered business there sales will increase and so will yours and maybe they will give you a better price and you can sell all that they sale plus charge to have them install.