@Cooper_Trelawney to the best of my knowledge, once the boat is built, its transported to the East Coast for fumigation and loaded on to a ship. The ship takes bit over a month to get to Melbourne, VIC.
As far as pricing compared to the US goes, 2021 ProStars are listed here on BoatSales as starting at AU$127,400 but that includes a fair few options standard and tandem trailer from my understanding.