a search using "Rapunzel Nectarine" as the search phrase provides several options. (Hint: don't use the quote marks.)

Jean - Of course that's the first thing I did :) Searched for about 2 hours online and posted only after I couldn't find a single vendor who sells this tree. It is not a DWN variety. I will try calling CRFG or Andys Orchard to find out... I will update here if I find anything.

Well, if you "Tasted these at a fruit tasting" - that would be the first place to look. From your comments, it's likely to be CFRG.

You might also be able to obtain grafting material from them in the spring. Often, they'll custom graft on order.

Wow, thanks Jean! I am drooling at the idea that I might be able to get from CRFG :)