Went to look at a 67 GTX 440 today and engine is a 67 so numbers matching and as far as I can tell original paint and car is in great shape.
Not to much rust on the bottom, and around the front and back glass are solid as well as the vinyl top with a 85,000 miles showing on the speedometer. A friend of mine is thinking about buying it and guess I'll find out soon if he's taking it home. Guessing it's worth about $15,000 .