Cheaper than dirt has a website, but their shop is located at 820 & I-35W in north Fort Worth. If you are on I-820 Westbound from the mid-cities, take the first exit after you cross I-35W, then u-turn the service road to head back east, they are right there on the southwest side of the 820/I35W intersection. Neat stuff, but I would think you go there (cheaper to check out the website considering gas prices thease days.) to get some idea of prices to use in negotiation at a gun show (the one at Big Town seems to be pretty good one).
Would expect you might negotiate better prices at a gun show, but the selection and probability of finding what you want would be less.
(AO, are you looking to use these in the playing you were suggesting in the Other Realm?
http://www.eccie.net/showthread.php?t=199050
Just teasing you, have a great day.)