Binci's: you can inquire here ...... about a year ago it was around $ 200, excl VAT (probably not for you), plus FedEx some $ 60; guess they wont ship otherwise; a lot of standard-mail-shipped parcels disappear in the Italian post cirquit, happened to me, regs nout
I bought a set of D reed a few years ago as a private person without any problems, and the reeds arrived within a week. The price then was also was about $200 total within the EU + shipping. I guess you'll have to pay VAT and import taxes to the US, though. Before I ordered directly from Binci, I asked a swedish accordion shop for their price for a set of Binci reeds, and they wanted $500 for the same set. I had another shop to change and tune the reeds in my Martin for another $200, total price less than the first shop's price for just the reeds.