From the contributions page on CCL:
"$10,000 - all of the $500 (donation) privileges, plus one of the theme rooms in your name, engraved on a large brass nameplate at room entrance."
At $10 to $20 per Freeper, that's only around 700 Freepers - we can do it!
My only reservation is that I would not want people to use their FR donations on this instead - FR is more important.