After flight expenses, is this still enough for our trip to Japan?

Question:

Hello!
My partner and I have been saving for a while and have $10 000 AUD.. (Pretty much the same as USD at the moment)

We subtracted the return flights, the Japan Rail passes, the TravelSim and travel insurance and are now left with about $5 500..

Is this enough for 4 weeks in Japan?
We're not backpacking- we'd like to try a lot of food, we don't want to stay in any fancy accommodation; however, we'd rather not stay in scary $25-per-night places.. ;)

Budget outlines?
Any tips on stretching the money?

Thank you for your help!! :D

Answer:

One more tip: bring the cash with you and have a prepaid credit or debit card (not your regular one) as backup (the one where you load up online has cheap rates and can be used anywhere in the world)

With cash in hand and the card as back up, you will not get stranded or left out of pocket