These guys have most anything you could want. The down side is that it's all real live aircraft quality stuff with a price match, but what the heck, if you can afford a Cobra.....They may even ship to Long Island
http://www.aircraftspruce.com/menus/me/aluminum.html
Jon D. Miller
Dirt Poor City Worker
(check my gallery for pics of my aircraft spec 2024-T3 Alclad)