One of the most obvious things to look for is RUST. Rust kills more of these cars than anything else. The most common problem is under the drivers seat floor pan. But check everywhere else. That's not to mean that some rust repair should turn you off of the car, as long as someone did a fair job of fixing it. But be REALLY careful to check the body to frame mounting points. That can be really hard to repair. Bottom line, buy it and have an adventure. By the way, I've had a 68 Triumph GT6 for more than twenty years. (That is the spitfires big brother) Pretty easy to work on and believe it or not, very reliable. I also have a 1961 TR3 that I've never gotten around to restoring. British cars are generally very simple machines to work on and almost every mechanical part is available. Hope you get it!