Not trying to steal OPs thunder, but I am also in this same boat, so am also interested in a race ready car. I'm coming at it from a bit of a different angle though. I've been running Lemons for 11 seasons. However, I am an "arrive and drive". I live in Atlanta and the car is in New Jersey. I would like to keep a car down south, so I can get my wife and son into Lemons, as well as have my northern teammates come race down south. However, the one thing I am NOT is a mechanic. I have very limited skills and time, so I want a car recently raced and race ready. I will find someone with mechanical ability to join the team, as well as having a local shop I'm friends with who can help me maintain it between races.
Having said that, the "simpler" the car, the better. A car with easy and cheap parts availability, not hard to work on. Of course, the less expensive the better too.
Three Pedal Mafia