If Australia name the same pack of forwards as on Saturday then they are there for the taking. I suspect Sheens may put Klemmer in the side, which would give them a bit more size and make them tougher to run over, but even then I think we'd still have a clear advantage up front.
That won't mean anything, though, if our ball control is anything like it was at the weekend; we'll need to go set-for-set with them if we want to take advantage of our superior size. If we turn over a lot of ball then that size will become a weakness. The game being in Melbourne should help - it probably won't be anything like as hot as it was at Lang Park.