Hey Manda
Also check all fluids. They must not be dirty and contaminated. Ask them to show you brake fluid, power steering fluid, coolant, oil and perhaps transmission fluid. Dirty or contaminated means trouble or poor maintenance. Ask if 100 000 service was done if applicable (this can be expensive). Ask if radiator was repaired or replaced. Check general condition of paint work , joints, door hinges etc.
TAKE YOUR TIME! I rushed through mine because i was mega excited. Had to spend $2000 to get up to standard.
Good luck, How exciting!