Dunno about the aussie situation, but the general world wide situation is that it would be better to sit tight and wait for things to pick up. If you buy a TR now it'll only really be useful for 6 months. After that you're no longer current.
I remember how you feel. A couple of years after getting the ATPL and you don't seem to be progressing. The temptation is to "buy yourself a job" During the good times this might work. But with so many type rated people being made redundant at the moment, who do you think the few companies that are hiring will prefer?
For now, just keep your CPL / IR current and make as many contacts as possible. Play the long game - the industry will pick up, you just need to be ready when it does.