Accountant from Australia

Need someone who assist us to setup a business in Australia but not gst register as we current or expected GST turnover is no more then $75,000. You need to be based in locally and legally can help through the process. NZ citizen so shouldn't be much issue to get this going. We are based in NZ at the moment and want expand our services to Aussie. Start as really small and build it as we go. tell me your cost, other cost and things need to know.