We have a couple of sites here in Alaska- 907bigboytoys.com and alaskaslist.com I don't have anything on there now, but I'm way behind on my production...
Check them out, Also if your by a military base try baseforsale.com There might be some more local type sites for your area, I know there used to be the thrifty nickel/ pennysaver, not sure if they're still around.