You might have better luck posting down in the gen 1/2 forums. That being said, I think those have been out of production for a while as I feel like I've seen that same request on here before a few times. Viper Parts Rack (Jon B) and Don Scharf are the two places I would probably check first though. Parts Rack got all the old VPA stock, so if there were still any NOS parts in there, they should have it. Don Scharf is a salvage yard that specializes in Vipers, so they might have some good used pieces.