I think one of the chips you're looking for is on ebay right now (not my auction). You might want to see if the seller has the other chips you're looking for.

http://cgi.ebay.com/Binions-Horseshoe-NCV-Las-Vegas-Nevada_W0QQitemZ300083824536QQihZ020QQcategoryZ63756QQrdZ1QQcmdZViewItem

Good Luck,
Anthony