I bought one exactly the same a few months ago. Mechanically sound, but with a few cosmetic faults (saggy headlining, couple of dings), 129k, long MOT. I paid £500, which I thought was about right.
Personally, I'd be a bit wary about that mileage. It works out at just over 4000 miles a year, which is pretty low. It's either had lots of short trips, or it's been sitting around doing nothing for a long time. Neither is particularly good for a car, unless it's been carefully maintained.
Great cars though, and I'm enjoying mine hugely.