Australia is better than Canada but
1, Post Doctor is not a job and try to get out from University. You will be very hard to find a job if you repeat your post doctor 2 more times.
2, About $70000 + 17% sup ($11900)
3, 3-4 bed room house cost you about $420 - $550 per week
4, Your partner needs to find a job otherwise very hard for your family with 2 kids.
