Franco:
You might try emailing Theresa Hill at Hillsview Gardens in Mulino, OR; she has quite a few on her benches (though I don't know about the price); if Ecuagenera will be near you at a show, they have them reasonably priced (even including the show "fee"); last but not least, try Lehua Orchids.
Good Luck,
Adam
Thanks again! I sent Thresea an email - and in the meantime ordered a couple of them from Graham at Lehua Orchids. I'll have them next friday!