I think it cost like 10 bucks max for me to do all my belts..
But that is from a german auto import place...not the dealer
Man...the exhaust manifold gasket was only 17 bucks off fastlane...
all else fails, take all the belts off..run the engine..listen for noise..if still there..your problem isn't so simple
but don't go fork out 100+ bucks for belts!...