Did I read somewhere about RAN interest in the USS Forrestal ?
There was an offer/interest in an Essex class as I understood it but I don't recall ever reading/hearing about the USS Forrestal or a Forrestal-class carrier and Australia. Mind you, there is nothing stopping someone from building such a USS Australia or writing a story about it...
As an aside, apparently in the late 1990s, the US did offer Brazil a Forrestal-class carrier, but the offer was declined.