have you considered taking this to court???
my stepbrother bought a tidy fiesta with 20k on the clock for £640 (no mot though)
hes not very technically minded and had the car delivered, flicked throught the service history and found out it went through 40's 60's 80k's, the strange thing is the car is in too good a condition to have gone around the clock, took it for an mot and the cat was nackered and it needed new pads and discs.
he contacted the seller and he refused to hand any money over, he then contacted trading standards and they said he has a case and he could take the seller to court.
so he rung the seller up again, explained he wouldnt hesitate to take it to court and immediately got the £400 for the work to get it through an mot

(sorry to bore you all with this lol)
but its worth a try, ring your local ts office and see if you have a case?
sam
