Want to buy Mini Cooper S Gen 1 - Help?

[needacar]

I'm thinking of buying a 54 plate MCS with around 60k miles for around £4k. Does this sound reasonable or am I being mad? What things are likely if any to go wrong on such a car? I really want you all to say get it they're great because I want one.. I live in London and often drive down south on weekends and a MCS seems to be the most fun for the money. Thoughts?