You don't know where the negotiations are. (market) You don't know whether or not the market we "could" achieve doesn't already exist and have a dollar value attached,(quality) and we are just negotiating Quantity. We don't know anything, but you are assuming everything including the worst scenario.
so, yes to be credible back up your BS with Experts and reasons for your Aussie low ball pricing.
I really don't expect you to actually do any DD for this board.
Oh and by the way WalterSobchak is rarely sarcastic. ie. Breath of fresh air and a giant what?