Looks a nice car mate. The only reason I was attracted to the other though was the miles. I was going to make it factory mint and put it in my garage for long term keeps. One with 60K+ miles loses the appeal for me, for those purposes.
I get why you're attracted to a lower mileage car mate, but think about it. If it's going in your garage as you say, you're not going to put many miles on it at all. Then there's the fact the one posted above is £500-£1000 cheaper and it's been looked after. Better spec being a full fat and also nicer parts on it, belts done at a reputable specialist.
I know the other is low miles but that doesn't stop it being a nail. The way the seller is behaving would give me alarm bells straight away.
To me it seems a no brainer but then I've never bought on miles, always on condition, spec and history (unless the price made absolute sense of course).