Someone correct me if I'm wrong, but I think you can legally bring 29,400 aud with you when you fly in, then get it exchanged once here, I use Super rich. For larger amounts I've read many here set up a Wise account, some use revolute, and other such services.
Yes, if you meet Japan's visa requirements for people with your Passport. No if you don't meet Japan's Visa requirements for people who have a Passport from your Country 🙏
did you edit your original comment by adding the word "fast"? I didn't notice it when I was responding. If not, my apologies, as I thought you were criticizing ALL the food 🙏