Got a couple done last year, building and pest combined, both came in at just under $400, GST inclusive.
Don't actually know anyone at the Sunny Coast to recommend, but a local real estate agent can recommend someone. Possibly you could try and get a look at the style of their report first.
One of my reports was very detailed and the inspector walked me through all possible future problems with the property. The other was a bit lighter with the information, but still covered the relevant stuff.
Good luck