I reckon you would have to find the kymco importer in Australia and find out from them where the closest dealer is to your location.
Here is South Africa, we have KYMCOSA, based in Durban, and they ship parts to my local dealer here in Cape Town, that's 1700km distance.
As an alternative suggestion, I have seen kymco parts on eBay.
Sent from my MI MAX using Tapatalk