This article suggests the Mach 1 costs more that the Bullitt in the US.
https://www.autoblog.com/2020/10/14/...er-books-open/
US Bullitt RRP Price - $46,705
US Mach 1 RRP Price - $52,915
In Australia, the Bullitt had a RRP before on roads of $73,688. My guess based on the US base price difference, Mach 1 will be about $80,000 - $85,000 RRP. Of course this will depend on what Ford Australia make standard.