40,000 original miles? $8,000? Yeah, sure, there's a sucker born every minute. If it's within 500 miles of you, go see it in person with cash available quick. Pretty good condition has to mean that it can make it around the block under its own power, and that you can verify the serial number on the frame against the title. Make the transaction at the DMV window.
If I was 100 miles from it I would have to talk to him and maybe go look. As you say, you never know until you go look, but it might be potentially a good car. The interior looks nice enough in the pic.