According to OSHbox, safety can be simple and your H&S system doesn't need to be time consuming and complicated. We suggest you start by focussing on completing your H&S Plan. Remember this is a "guideline" for you only and you will need to adapt it according to the size of your business and whether you employ staff.
For some further introductory reading: Worksafe H&S Guide for Small / Medium Businesses OSHBox - making safety simple
ACC - Implement Safe Workplace Practices