You can try this website, but they dont have a variety of crays. Ordered many fish from them and can even replace your DOAs for free http://www.petzonesd.com/
There are always a few different crays and crabs flaoting around te LFSs in my area, i havent kept any except the one unidentified cray i have, some of these crays are really cool looking though. I was temped when i saw the huge aussy red claws that one store had.I wish I had that selection near me.