Did you ever manage to contact the guy in Houghton with an original probe?
I had a few people tell me about the car and send me photos. Unfortunately it wasn't in great condition and I couldn't get anyone interested in buying it. I have two already!
Given the fact it had stood so long, needed new tyres, brakes etc, there was rust in the rear arches and the usual sun roof made it uneconomical to put on the road with prices as they are. Nobody was willing to spend £300 on a car that needed all that work (and about £800) spent on it when £1200-£1500 buys a minter.