Wishing you good luck in selling your chips.
I'm not a volume or group of chips buyer, but I do buy individual chips, as needed.
Given the number you have to sell, the ALL or GROUP options seem your best / preferred option.

But, if after a period of time, if you are open to selling individual chips, I would be glad to look over your list (or the portion of it that's Nevada). I have Excel, so I could do my own sort, no problem.

Good luck, and I hope you enjoyed the multi-year "ride" you got out of being a chip collector.