i just bought a 200mW green laser module from o-like and it arrived today, mind you i have already received a interception /warning from Aust Customs for importing "Whole Portable Lasers" >5mw 4 months ago
As long as its just the module , dont stress, i had a reason to stress, cause i already had a strike against my name, and i wasnt sure, when i was in your shoes
Fortunately you can order just the parts and build one... no one looks at the components. Customs shouldn't be an issue.
Also many companies like o-like will ship to Australia, what they do is mark lasers as $5-$10 flashlights. You can also pay a little extra and have the laser shipped in parts, bypassing potential problems altogether.