dxbpilot
As long as you qualify for an Australian ATPL which can be found in
CAR 5.172 & 5.173, I would suggest you do qualify to fly for most Australian operators. To act as PIC of an Australian aircraft greater than 5700 kg in RPT ops you must meet the following. I have bolded the ICUS bit. I am pretty sure in Europe and most parts of the world if you have a P1 rating on an aircraft and you are the FO, you log it as ICUS or P1US when ever it is your leg. If an airline stipulates 500 multi pic then it may be their own requirements for screening as apposed to a regulatory requirement. I personally would still apply and see what happens, especially as you are an Australian citizen.
CAO 82.3 (Appendix 4 Pg 2)
Category
• Aeroplanes exceeding 5 700 kg MTOW
Qualifications
• Air transport pilot (aeroplane) licence
• Command (multi-engine aeroplane) instrument rating
Minimum Aeronautical Experience
• 2 000 hours total experience as a pilot, that includes:
• 500 hours as pilot in command (or acting as pilot in command under supervision) on multi-engine aeroplanes under the I.F.R.;
and
• 50 hours as pilot in command (or acting as pilot in command under supervision) on the aeroplane type;
and
• 100 hours experience as a pilot on night operations.