hi mikehuk
airwork helicopters in queensland are a good start. they are internationally accredited for overseas students and know all the ins and outs of the industry.
just add .com.au and contact them. night and instrument are available and you get instructors with a lot of time on both. ian paul is the man to contact.
be careful of the schools who intimate they are jar compliant. they don't exist in australia.
try them.