I’m going to keep the Defender as overal the car is in very good condition, just a bit dodgy mechanical (at least it starts and stops). VINs all matches as I did one of the AA check thingies on it before I purchased it. I think the mileage is correct as I checked the last 10 years of previous MOTs online and they all ticked up correctly well before the seller purchased it.
As pointed out the stuff needed doing is not massive (yet). I will probably get the garage to do all the hard stuff, slightly worried about the rear diff, from what my friend said it was the bolts connecting it that were loses and could of done proper damage when using it and it has also been bodged at some time on a repair which sounds expensive.
I guess the seller did a pub job on the mot. I will just get some sadistic enjoyment making the MOT test centres life hell! There was a tester in Somerset that was doing dodgy MOTs for people about a years ago and got sent down for 6 months.