I would ask why the gearbox has been rebuilt at 70K and has the other expensive parts been done yet?
I am thinking engine could have been ragged and lots of bills around the corner, but on the other hand, why tell you the gearbox was rebuilt and the lower arms my have been done.
If you can, always ask if someone will take a look at the car with you.
Zephyr (Simon) is in Plymouth - nice guy.