The miles don't really matter as long as the car isn't acting weird when you drive it. My first coupe had 210,000 miles on it when I bought it and I drove it for almost two years and it ended it's life at 285,000. People can change the motor out and put a different one in and the miles will not be the same as the cluster so you aren't going to be sure the mileage unless it's a stock motor and the owners haven't replaced it.
As for condition of the car..what are you exactly looking for? Full on project or a project that would just need a little TLC? I mean, if you want a full out project you can find a shell and go from there and do all the work or if you want something not that dramatic then a running car that maybe needs new interior or just needs a good wash.
Really hard question to ask because there's so much info out there to look at before getting a car. Hopefully this will help a little bit. I know the other members here will chime in and help out. That's what we are here for.
