OPENING UP A BOUTIQUE?

I am really into fashion i love it so much and i am thinking about opening an online boutique and one day making it into a store when i have the right money, but anyways my question is, how and where do i buy all the clothes i know it sounds silly but honestly i am so confused if you have watched keeping up with the kardashians in their stores they get all the merchandise delievered to them they do not make it and i would love to know places in QLD australia or even websites that ship to australia and aren't reallly expensive that have fashion high fashion clothing and accessories and sell in wholesale. please help thanks!