I picked up a daily-driven '99 C2 for $18K. The PPI showed that it needed a bunch of "minor maintenance," including a transmission bearing and some spark plug tube oil seals, but nothing significant. That may seem pricey, but in my searching in the DC Metro area, everything was at least a few $K more expensive than elsewhere.
She's cosmetically imperfect, and some people may complain about the headlights, but she'll make a GREAT track car.