It's going to be challenging, even as a house plant, but maybe you like your house very warm and humid? It's still going to be difficult to give it enough light. I found some care advice here -
http://blogginghouseplants.blogspot.com/2008/07/coconut-palms-cocos-nucifera.html
and there are some Australian GoYers who grow this coconut palm. You could try sending a private message to see if they have any advice.

Oh, sorry, I've just noticed you're a guest. If you join GoY you'd be able to send a PM to coconut palm growers down under to see if they've got anything to say to help.