Hi Mate, good point to start are the board stores, 'The Zu Boardsports' check out on Facebook
www.facebook.com/The.Zu.Boardsports or Sailboard Headquarter
www.shq.com.au. Both shops may be able to help out with demo stuff. You may also want to bring a 4/3 wettie, the bay is freezing at the moment (11.5 deg). Hope that helps, Cheers JAK