This is what you want, and close to you.
http://tinyurl.com/7vd7j8b
2003 Corvette C5 Z06 50th Anniv. Ed. 6 speed 58,000 miles, Selective Ride Control, for only $19,500. I am sure there is some haggle room as well but a hell of a deal.
There are plenty of C5's for Around $12,000 though. Much better car than the S2000.