To begin with, what about a Sea Fury with the Napier Sabre (incl chin radiator) of the Hawker Tempest V?
Didn't Marks V and VI have the same cowling? What is inside the scoop was different.
What if the ADF decided to standardise on fighters early on with the result that the RAN FAA and RAAF ended up with a common new fighter (yeah, I know the dates don't quite work out) in the form of the Sea Fury/Fury. This might see a Sea Fury/Fury in the following type of scheme:
RAN Sea Fury