Welcome! Those wheels will make you easy to spot out and about
Tokyo are very experienced with EVOs (did a great job on my dads EVO X) and rather new to WRX platforms but doesn't mean they won't be good. Call or FB message them for prices for tuning because it can vary.
If you want to go through a long term Subaru workshop try STECHNIC, Maximum Motorsport, etc (
check out the Perth WRX workshop thread for numbers, names and addresses -
http://www.perth-wrx.com/vb/mechanic...workshops.html). I can highly recommend Maximum Motorsport and STECHNIC through recent exproience