Expect to have a battery that will be needing TLC or replacement in an auction car. Its a $2000 expense for a new one, or $100-700 for grid chargers. Bid accordingly.
Most other things are cheap, except the trans fix at $800 (but you can live with grinding for years) , and the CAT converter.
Bridgestone Potenza RE92 tires are essential for max MPG, so budget $350-400 if not so equipped and this is a factor for you over somewhat better ride of other (cheaper) tires.
Good luck...welcome to the other side of the forum
Where are you located?