At your cost? AFAP was free to advertise on last time I checked. Changing the careers section of your website doesn't cost either. If you really want splash the cash you can put an ad on Seek ($198 last time I did that). If a jet operator doesn't want to spend another $198 to post another Seek ad then they need to take a look at their business model.
As for your under qualification you only need a CPL and a multi IR (and type rating) to fly any jet in Australia. Jetstar already do that so what are these union and regulator problems you speak of?