American Choice makes some very nice ready mades.
And I'm sure that Rhonda Feinman would be happy to provide you with a nice steady stream of stock sizes and all for under $17,000.
Now that I have gotten that out of my system.
Welcome to the Grumble.
As a basement framer, I'm sure that $2,000 8x10s were not what you were looking for... but I could be wrong.
Are you looking for a volume supplier, or a one-off? $2 16x20s or $12 8x10s?
There are as many options to your question as Deaconsbench discribed for hits on the internet.
Being just a little more specific about what your needs are, and what you are looking for could just help us help you.