Hi
That’s good to hear that you’ve got more time.
We’re currently going through the process and have found it can take time. Due to the weather events this year the process just to get quotes and inspections undertaken was close to 6 months. So, know all critical dates and keep the momentum!
You’ve no doubt discovered there’s a number of good Flat Chat podcasts about major defects plus these links maybe of interest if you’re looking for things to read https://cityfutures.ada.unsw.edu.au/research/projects/defect-rectification/ and https://www.ncat.nsw.gov.au/case-types/housing-and-property/home-building.html