congrats mate, i recon thats a bargain, you would have been taking the piss trying to get it cheaper

1) hold the trip reset button in
2) suspect bearings
3) rising sun subaru, search, about 500 for full kit (belt/tensioner/idlers/water pump/crank seal)
4) get genuine, ryco etc are shit for wrx's & same price as genuine

edit:

just checked, maybe just grab these 2 kits off kris, he's on here somewhere & doesn't mind shipping interstate, its worth doing the upper engine cleaner before you drop the old oil


service kit

inc

-upper cyl cleaner

-oil filter and crush washer

-5L Subaru oil

-fuel additive

-washer bottle additive

$88 each kit
-----------------------------------

Timing belt service kit

-TB Kit

-water-pump

-water pump gasket

-thermostat with seal

$555 each kit