Hi, I have a 190 visa SS from NSW as a university lecturer, I have just been out to sydney for 3 weeks to do a recki on jobs and it wasn't good news for uni lecturers, there were jobs but in very specific fields, I would say quite rare fields too, I can teach business, economics, finance, tourism, events and there was nothing for me, however I did look at tafe and they had opportunities for my field, however it's a college level not uni, the pay was $75 per hr so quite good but posts were quite far from the city. Just might want to be sure you can find work before you pay the money if you need to work once there.
good luck, jojo x