Negotiate on the price a bit...
Also check if the car has it owner's manual and repairs manual.
The first thing to do after buying the car change the transmission oil and engine to OEM specs. After that change the brake fluid. Also check for the timings and the alternator belts and if require change them immediately. Service the brakes change the radiator coolant to a good quality coolant and you are good to go.
Keep regular checkups and change the fluids in time and she will be faithful and trustworthy for the years to come...