Yep that's the right spot.
The price shown there is USD, but as you should always select Pay At Hotel on FHR bookings to increase the chance of getting status recognition/points/status nights, it doesn't matter whether you book through the AU or US portals as you're gonna get charged in the local currency on checkout.
That is another benefit of switching payment over to the Hilton Aspire though, not only do I get 14x points on the HH spend, but the Aspire also doesn't incur a forex commission. Of course I need to pay it off via an AUD-USD transfer through Wise but they take a far smaller cut than the 3% Amex AU would slug me with for paying with the Plat.
Its looking like the US Aspire is an excellent partner card to the AU Plat if you are staying in Hiltons outside of Aus which are part of FHR/THC.