Jeez, Roger. You have the worst luck with cars. The escort in excellent condition only books out at $3000. And you're actually thinking about throwing another $4000 at it! If you can't fix it for under a grand, junk it and cut your losses.
Next time, take a mechanic with you when you shop for cars, and don't buy 'em from "Hi-Dollar Ray's Used Car Pasture and Mudflap Emporium"
Paul K. Dickman