Apparently after I posted about 61 W Erie on Curbed, realtors have been hounding Hudson Construction, who leaked the design renders, to ask how to buy them. A lot of rich people saw that design and said yes yes I will buy please tell me how.
Whoever is behind the project didn't put out contact information or anything. The zoning board amendment was filed by a pop-up LLC called "Erie Acquisitions". Nobody can figure out who to buy from. It's like some big dumb mystery or whoever's backing the project has no PR or sales skills.
I think I remember there being some kind of fight here about whether rich people would want to live there at those prices. I don't remember who or what was in that argument, but it looks like the answer is yes.
edit - this thing: