Early Childhood Teacher salary/wage in Sydney

We recently moved to Beecroft in Sydney, and my Wife has been struggling to find out the average pay for an ECT teacher. She has 12 years experience in NZ, and the UK. Shes been contacted by a recruitment company for casual ECT work as a reliever and is currently offered $28/day, which is very low compared to what she was earning back in NZ. Quick search on seek.com.au shows a huge variance between $25-69/hr. What sort of figures should she be expecting to get in Sydney?