MartinCH, to get that visa you need to be sponsored by your future employer. As the OP is not qualified, then he can't be sponsored.
The OP is talking about going to Australia to get his CPL and then trying for a job.
As far as I can tell from the OP, he has not addressed the whole "living and working in Australia" bit.
I wish him luck, it is not impossible but it does take some persistance.