I agree 100% that a smart escribano can resolve everything for you. That was my experience when my escribano explained all the processes, saved me ALOT of time and did all my papers so I can buy for the first time here in B.A. If the original poster or anyone needs a very smart young escribano on top of all these things, just send me a private message.
I have been there, and it all seems complicated, cuit, boleto, escritura, clave fiscal etc...UNTIL someone like an escribano who does it everyday explains it to you. Also, the money transferring to N.Y. is taken care of aswell and its less complicated than you think.