If Britain built six Invincible-class carriers, how likely is it that Australia would obtain one?
Short answerQuite likely, because the larger British run would reduce cost and support an Australian purchase or build of an enlarged general-purpose variant.
NotesA larger production run changes both economics and design. Australia could buy into a mature program without Britain necessarily surrendering one of its own post-Falklands hulls. The expanded class would likely grow toward roughly 28,000 tons, with more hangar capacity, a larger air group, and greater amphibious flexibility than the historical ships.