bitcoin exchange

Hi I am new to this forum and I wanted to get people’s ideas on the Australian cryptocurrency exchange Coinspot. Recently they changed their pricing system which they call “dynamic” but is in my opinion is such an unbelievably misleading structure that really borders on misconduct...

I want to start a bitcoin exchange from oz bank deposits into the major bitcoin exchanges through my own website. How would I go about this? All I know so far is I want to be able to use ANZ, Commonwealth, Bendigo, Westpac, NAB & Suncorp as deposit locations & be able to turn my custormers...