Soseg, don't waste money flying up for a visit, if you want to be a charter pilot, make the move north. Unless you have some sort of experience I wouldn't bother with Darwin, better move to Kununurra or Broome and get a day job.
Chances of finding a gig before March-April next year are slim, even then it will take a bit of good timing and luck to land a job. People on here can be pretty optimistic when it comes to giving advice to newbie's. With no regionals employing, movement in GA is going to be very slow for some time yet.