Farkleit, I put in those towns, but also dragged the route on the map to include Brisbane and Perth without naming them.
The Capalaba to Perth run would count as a Brisbane/Perth 50CC Gold. Davo did one years ago. I did one during the Australia Southern Cross (ASC), taking 49 hours 51 minutes if I recall correctly.
Like that 50CC within the ASC, I also completed and documented a Trans Australia, a 50CC Darwin to Torquay and SS1600s, SS2000K and a BBG2500.
I didn't submit any of those extra rides.
Approaching a big ride like the ASC, though, I can highly recommend breaking the trip into both physical and mental chunks of IBA certificate length.