Looking to pick up a 3rd gen 4runner. I have my eye on a 1997 SR5 4x4 with 160k miles on it. I'm not a car person at all. I can change a flat tire and the oil and that's about it. What should I look for when looking at this vehicle and what should I do to it if I purchase it to make sure it's reliable? I plan on changing the oil and spark plugs just in case but should I flush the radiator/transmission fluid/anything else? Thanks!