Had the car inspected by a mechanic before purchase and was clean.
At 157000k, leaking Head Gasket, needed new radiator, needed new air filter and thermostat, timing belt.
Needed "valve job" to fix noise it made.
Had a mechanic do a major inspection on it when I bought it for $4,200. He said it looked clear, but would need a timing belt a year or so down the road.
Problems came immediately. Started making strange noise, had some minor belts replaced for $150. Then over the summer it started overheating ALL THE TIME, so I took it to a Toyota dealer and they quoted me at $3100 to fix all the problems.
I'm planning on selling it as a "fixer upper" as is for cheap and let some auto-hobbyist fix it for himself, or sell it to a used car dealer.
I really liked the pickup, but I would advise all to stay away from the Automatic V6. I know people who've had manual-4cyl's who've only had to replace the timing belt a couple times (which is to be expected). Other than that they've been amazing.
4-cyl Manual's are simple and reliable... so go that direction, Toyota apparently hadn't quite mastered the AUTO V6 at the time.