Yes the above poster is correct.
Darwin does not run in a busy/quiet season etc, accept for scenics. Your hours while not fresh cpl but definately stll low will make getting a foot in the door difficult. With a somewhat fresh instructors rating I would be pushing to get into instructing in Oz. Youve paid for the rating and obviously have some instructing experience, if I was in your shoes Thats what I would do. This wet has also been a decent one with plenty of moonsoon troughs etc and the chances that a CP would let a low hour Cpl loose would be minimal. I know how hard it is but keep at it and stay positive, doors open for those that persist. Good Luck Mate.