hey erlk, cruise over to engine/drivetrain and search for my post in one of the timing belt threads with the parts and labor charges for a complete rebuild. short story, i paid 550 in labor for a front end rebuild and a coolant flush, and ~300 in parts.
my timing idlers did not need replacing, but i had the water pump and timing belt tensioner replaced as a precautionary measure. my sister has an old subaru, her water pump went recently, luckily in town...i'd rather replace the part before it's dead, than wait til it breaks in the middle of nowhere and risk being dead myself

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-sean