Yes, that's pretty much it.

For me personally, I source from US suppliers, and have them ship to a fulfillment company who then Prep the stock (labelling/barcodes/packaging) for Amazon. Once your stock arrives at the Amazon warehouse they take care of the rest. Obviously there are extra costs involved, but it's worth it in the end. Everything is automated.

I recommend joining the Australian Amazon FBA Facebook group run by by a nice lady named Trish Dickinson. Everyone there is extremely helpful.