Flight
The best airport to fly into is Brisbane Arport. There is a train that runs from the domestic terminal into the CBD ($19 per adult each way). If you are a couple or group we would recommend an Uber.
Hotel
Fortitude Valley or Brisbane CBD are the best suburbs for convenient accomodation, FV by peppers is the hotel many guests are choosing to staying at. The ceremony is a 10min walk and Recepetion is a 4mim drive or 17min walk (if so inclined at the end of the night)