There is no such thing as S76C or S76C+ type rating in Australia. The type rating is simply SK76. You can do your P1 training on S76A/A+/A++/B/C/C+/C++/D and it's all the same as far as the type rating on your licence is concerned. But to answer your question, I don't think it can be done in Australia. The S76C+/C++ simulator in ZhuHai China used to be certified annually by CASA when Bristow operated the type, but that has probably lapsed since the S76 is now dead and buried almost everywhere. But expect to pay $25K USD+ for the course. Why you'd need it on your CASA licence is a bit of a mystery.