You're forgetting that any car newer than '75 has to go through a routine smog check every 2 years and cannot have any modifications unless it has a CARB tag on it. Usually the most you can do is a set of headers, a cat back, and maybe a cold air intake. Besides that, everything must be stock. The other half older than '75 are about out of my price range right now.

I already talked to the guy in my town. That car has been listed for 2-3 months at that price. There's a reason why it hasn't sold yet. It's definitely a $1500 truck.