Hello Rodger
Welcome to Poms in Oz.
Your idea is very, very complex, my friend. That is for sure.
You definitely need the help of a Registered Miggration Agent with a stack of
genuine experience of the scenatio which you propose.
In your shoes, my own first port of call would be Alan Collett of Go Matilda because Alan is a Chartered Acountant in both jurisdictions as well as being a Registered Migration Agent.
The sort of help you need goes way beyond acquiring a couple of visas. If you are ging to buy an existing business in Oz, you will need help with the verification process and so on because you won't have any better idea than I have about how to do all this in a different jurisdiction, I suggest.
You can contact Alan via a PM or e-mail Poms in Oz or via his website, which is here:
Go Matilda - Your Gateway to Australia - Contact and Feedback
Cheers
Gill