1979 Pontiac Sunbird with 50,000 miles?

[Joe D]

What do you think this car is worth. It is a 1979 Pontiac Sunbird. It is a four-speed manual. It has tilt steering, air conditioning, and AM radio. It is brown with tan leather seats. The body and interior are all original and in extremely good condition, as is the engine with 50,000 miles on it. The car runs great, but the clutch is starting to go bad, and the frame is rusting a bit in the rear passenger-side wheel-well.
PS- Don't try to check on Kelley Bluebook-it only goes back to 1989.