So just for the hell of it I called the shop as they are local to me, in short I didn't give me the impression they know what they are doing. One of the responses I got was "its the boss's bike and he doesn't want to sell it, someone offered him 5k and he said no". I then pointed out ALL the issues with the bike and the fact that (and they confirmed) its has a 10yr old tyre on the front wheel...!!! He then asked me how much I thought it was worth, I said if they fixed all the issues with the bike and the "mileage is genuine" the most they could ask for it is 3k.
I asked why the first MOT was sep 2018, with nothing going back to 2001? no reply. I then asked if the bike is an import, suggesting that the clocks have been swapped, again no answer.
Yamaha Uk confirmed it not coming up as a UK bike, but this could be something as innocent as the bike details being entered in wrong all this time...