CapeCodV20
Try this guy.
http://www.garzonstudio.com/
He usually has quite few decals listed on ebay and if you want something he does list just ask. I have a Aquasport 25 CCP that I needed new side decals for which he didn't carry, and all I had to do was send him a digital picture with the diminensions and a couple of bucks and I got a near perfect replacement. I also sent along a piece of the water line striping I had recently replaced and he got a perfect color match! I was very happy with his work.
Kamikaze