Arrr got ya! I convinced my parents to let me have a minature pony when I was 16. Atleast ducks are productive animals. They're eggs make the most delicious cakes. Good luck!
I believe its reasonable for Aust. Everythings more expensive here then U.S.
When you say see if you're allowed to... do you mean limited to how many breeds you can keep? Or if you can have any ducks or not?