Check with Andy Hughes....
http://www.nevadacasinochips.com/

Check with Pete Rizzo
http://www.oldvegaschips.com/

These guys might be able to help you out.
Can't go wrong with either one of them.

If you have Millenium traders, a post here with a scan might encourage a trade with other Mill collectors... there's plenty of them around.

Wish I could help you - but I have a reputation for being "LE-resistant"
Good luck and welcome to the ChipBoard