I don't know how much time you have, but I buy all my stuff from bag-boy on ebay. I believe his web is www.darvex.com. He's got the SWB Huge Internet Retailer of the Year Award for 2005-2006. The guy is solid, sells Stingers, cheap and ships FAST.
Ditto bag-boy. I just bought a ton of stuff for my install. Best prices and service I could find online.