I was lucky to get 20 at the cage but they wouldn’t sell me uncirculated. I got the rest of mine from the tables. I have some that are very sharp or near mint but I wouldn’t call them mint.
The rack on eBay looks pretty sharp, I almost bought it a couple times.
As someone who has had very pleasant conversations with one of the cage managers & attempted this myself. Getting a whole rack of uncirculated $1s, even over the course of many days, is IMPRESSIVE!