Largely the same deal as for the quest 2 from amazon US https://www.ozbargain.com.au/node/576961
I believe you get the American wall adapter and lose out on Aussie warranty and wait for shipping for around $40 of savings.
Shipping is $6.99 max if you sign up for a monthly prime membership.
64gb US version $439.63/$479 AU
256gb US version $586.66/$639 AU
Combine with 10% zip amazon GCs for less than $400.
Still sticking to my guns on the "f*** facebook" aspect of the Oculus.