Tell me it'll be fine !!!B

So Omegod (of this parish) frequents another car related forum where I saw an "Ideal" Mv6 for sale.
And he suggested in a private message that I might find this forum useful.
I've read pretty much everything that I can, but I'm having second thoughts about this particular car.
The guy that owns it is obviously very busy and has been moving house.
He needs to get it an MOT, but assuming it will pass, I was prepared to travel 4 hours on a train to either buy it or run away.
So In communication with owner I know the following
161K miles
Both heated seats work
Air con isn't blowing cold but the compressor is kicking in
He's looked through the service history but there is no evidence of the oil cooler being done, that's not to say it might not have done
There are receipts for services carried out in a level arch file that previous owner gave him when he bought it
There is a receipt stating the gearbox oil was checked for condition at 152k, no recommendation to change but then at 158k there is a receipt for gearbox oil & filter change (June 2015, car has now done 161k)
- Timing Belt & Water Pump was also done at 152k
- Other work carried out in the last 2 years includes new battery, new radiator, replacement windscreen,, 4 tyres, front anti-roll bar end links, water heater valve replaced, exhaust system replaced.
There is a dent in one door (Omegod has a door in the correct colour, so no real issue)
It has an Irmscher front grille, finished in petrol blue, and No rust on any of the arches
I'm thinking my going off this particular car is a) It's rather miles away, b.) The air-con has thrown me. If it stopped working 12 mins after I got the car I'd live with it. c) I'm impatient. d) I'll likely put at least 15K on the miles every year if not more, so whilst high miles does not faze me, it will quickly go higher.
The price he wants for it is less than I've spent on repairs and servicing of the family fleet in the last month, so not exactly going to break the bank if it all goes tits up.
I've justified it to my long suffering wife, who gets chronic back pain in my mk4 astra (so called sports seats are crap)
So encourage me to hold on in there. No second hand car under a grand will be perfect, and it'll all be fine.