I would list LV separate from other Nevada since the collectors/buyers overlap but aren't the same

I would not list each chip separately. The time involved and the higher shipping cost per-chip would drive some buyers away. I would group them logically - maybe all 4Q, or some other common element.

Unfortunately, you bought at the height of collecting, but there are some collectors who will be missing a few. The issue is whether they will bid on a lot of 4, 10, or 50 just to get the one or two they need. You'll find out quick enough, and at least with an auction the listing doesn't sit dormant for a month

"Choice" is for certain sellers who are able to use drop-down menus for buy-it-now items that have variations