Try and import something without doing the research and getting the appropriate permit is asking for seizure. With the proper permit, you can import all manner of things.
Getting that permit, however, can be the fun bit.
You have at least started by asking questions - and, unfortunately, I don't have any answers ... but keep asking.
Just make sure you have done all the groundwork
before ordering your thingamajig.
Here is the site which should have your answers:
https://dfat.gov.au - but finding your way could be challenging.