I forgot to mention that this week I was looking for a Bc. Saint Andre for myself and ended up finding this nursery's website which had small cattleyas for R$10 each.
Since that's only 3 US dollars, I thought it would be a small seedling. I was going to order a few big plants so I decided to buy one anyway and to my surprise it is incredibly healthy and decent sized.
They have about 60 different cattleyas with this price tag, so now I'm tempted to buy a few to use on my project
If anyone is interested, here's the URL.
Orquidário Oriental