This is the original group buy.
Active GB: Grand Cardroom CASH Set GB on MGK Mold - CLOSED!
You can see only 8000 of these were made and about 8 people bought sets. Monkeydog was not one of those, so who knows which person he bought his chips from. I also don't know out of those, how many 25s were made. So it's a pretty exclusive set. That's why I said you have to like the breakdown because it would be tough to get more and even if you do, it is likely you would have to buy someone else's entire set just to get the 25s, then you are left with chips you don't want and so on. Looks like the original price was about $1.25 per, so as I said, if these are the chips you want, it's a great price. Someone took a huge loss on these at some point. The 20s were probably more like $2 or more ea and would be even rarer.
Here I found the $20 group buy.
Poker Chips and Poker Chip Advice - ChipTalk.net
Looks like only 930 of these were made, so 80 would be almost 10% of all the chips in existence and I see monkeydog is the original owner of those. Try and get a rack too if he has one, because 50mm racks are hard to find. Took me over 3 years to find one.