Hi Uechi,
Here's a link to a Brazilian nursery that has Cattleya iricolor blooming size to sell. Don't know whether they export or not, but you can take a shot:
Orquidário Santa Bárbara - Loja Virtual na Web!
Well, I know that perfume is a matter of nose, but I must say that, from my experience growing this Cattleya for long, that C. iricolor is perfumed, yes, but in my humble opinion it is not the most perfumed Cattleya nor its perfume pleases everybody. It is not like the Cattleya percivalliana unpleasant smell, far from that, but C. iricolor has sort of 'different' odor to say the less. I assume that you are talking about the Ecuadorian Cattleya iricolor (I'm posting a picture of my plant for you to see whether I am talking about the same plant you have in mind). Please, take this as a contribution.