Wife went to a dealer to see why engine sounds not right and mpg is not what it used to be... (though sounds about perfect to me

). So their technician after checking brought a paper with following things:
Front and Side motor mounts: $300 for parts + $312 for labour.
Fuel /Sytem flushes : $279
Drive belt (cracking): $149 (part+labour)
wipers: $21
I started to look online for those mounts, i can't find anywhere...Normally ther prices at dealer's place are at least 1.5 times more expensive than same OEM parts from internet, so even if i consider replacing mounts i'm not gonna buy anything from a dealer. Does anyone know where i can buy front and side (i even don't know if those are identical parts or different) motor mounts?
btw it's a Camry 2002 2.4L
thanks