Great game and the cheapest this has gone for on the Australian eshop is $22.49. Just sign up and use your Australian Paypal with no issues.

Please note you need to activate on a US account, I just change my region using the accounts page, activate, then change back.

You need to have no credit on your AU account to change regions.i In that case create a second account on your switch and use the US region or spend that cash.

Nintendo Accounts

Also! Don't forget you will get 100 coins on your account, for the US store only. So can pick up a throw away game on sale or wait for future shovelware.