I get most of my paint from Rainbow 10

Rainbow 10 no longer ship aerosols overseas but HLJ is still able to, which is strange as R10 cite Japanese post as the reason.

Auto colours from Hiroboy.com. Airbrush only.

Local hobby stores around here have bottles of Tamiya enamel and spray cans.
Also I've found the hobby store next to Flinders Station is about the only stockist of Testors Model Master Chrome Silver which is a decent brushable chrome.