If you have the S7 and are looking for the self emptying dock for it, this is probably the cheapest with the simplest way that you can get it into Australia.
Note this is the Cyclone model that allows you to use either dust bag or bagless. Roborock AU is selling it for $699. Gearbite also has one for $599 but it apparently is the dust-bag-only model.
Also it is cheaper in the APP:
https://banggood.app.link/2Xk99lqFXjb
Holy shit.. just the dock cost $548??
No thank you..