To be blunt, with your hours you will find it impossible to gain King Air command on the east coast of Aus. Client requirements alone will rule you out.
Lots of King Air drivers about and very few aircraft.
On the east coast for charter about 7 ( CS 2 MA 1 BN 1 TWB 1 SY 1 ML 1 ) with 1 maybe 2 B350's.