fane - something you may not realise is that a number of commercial businesses in perth use prestige to source vehicles.
buying from a non-broker (who would probably have used a buyer in japan - who may even be the same bloke that the broker uses) doesnt make the kms any more genuine..
in fact, buying through a broker can at least offer you the chance to see the wear on the interior prior to someone detailing the car and fixing the tears in seats etc.....
that said, having gone through the broking process before, I'd find a nice example locally, through private sale, get a leakdown test done, and save all the hassles of compliance and rego.