Would I earn a lot of money starting up this business?

I want to start up a pet store, but not like any pet store...
I want to start up a store that sells the usual dogs, cats, rabbits, rats, mice but also reptiles (snakes, turtles, lizards) and sells tropical fish.
But also have a grooming centre, pet minding and obedience centre inside the pet store.
Would this be successful in Australia and how much approx to start up (buy property, renovate, buy supplies, animals etc etc)
How much approx do you think it would be to set up? Because I have NO idea!