If you want an EASA type rating, you'll need an EASA CPL/IR and EASA ATPL theory credit (which most people do after PPL)
In your case, you'll need to:
1, register at an ATO to take either a full time residential course (6 months) or a distance learning course (about 12 months)
2, Pass all 14 exams within an 18 month window.
3, convert your CPL and IR to easa (about 20 hours flight training plus tests approx $2500 each test)
4, Take an MCC course, usually 10 days about $8000
5, now you can start a type rating.
Why the **** would you put yourself through all of that when the world's biggest pilot market is on your doorstep? The FAA will give you a licence and you can get a type rating for $10000 in about 3 weeks!