My guess is that you're going to have to wait till the GB is over, as some vendors may have picked up a few sets to sell (techkeys, keypop, pimpmykeyboard, etc.).
If you are unfamiliar with the group-buy format, you should understand that those who don't join the original group-buy are generally unable to obtain a set until the buy is completed and people don't want their sets anymore or a vendor picks up and sells them. That or if people end up canceling their order, leftovers will be sold on hand