The BFT is held at Hares and Hyenas here in Melb. which is a queer bookstore with coffeeshop. I've just attended my first meet with the betterhalf and they are a great group of people. Perhaps if you can find somewhere similar in Sydney (surely of all places Sydney would have these things!) and just organise coffee get togethers once a month. That shouldn't be overly hard to organise and you already have the contacts to invite through the guild. Just a thought