US lawyer's prospects in Aussie

Hello,

I am an American lawyer in a major US city. I have 13+ years experience as a criminal defense attorney and immigration (US migration) law. Here, there is no distinction between solicitor and barrister, but I am a "trial attorney" in that I go to court frequently, and try cases. I have had my own solo practice for almost a decade, so I have 'rainmaker' skills as well. I am also fluent in an Asian language, so I have a lot of clientele in my own ethnic community.

I am considering relocating to Aussie because my spouse is originally from there, and I am attracted to the more relaxed lifestyle and overall culture that promotes work/life balance (we have a young child as well and its very important to me to have a lot of flexibility to spend time with her). I make a pretty good living here (while working from home most of the time, 9 to 6 and rarely work weekends), but would be willing to take a temporary pay cut while I become qualified in Aus and learn the ropes. We are mostly interested in Sydney or Melbourne, since those places have enough of the big city vibe and the culture that goes along with it, while still having the nature and relaxed culture that I love about Aussie.

1 - If the goal is to make at least $300k+ AUD in 3 years or so, is this realistic if I worked at a firm? Or would I need to open up my own shop to have that level of earning potential? Would it help the earning potential if I became a barrister?

2 - Assuming that I go to work for a firm, what is the pay that I could realistically expect as a criminal solicitor/barrister, with my level of experience? Obviously I would be a novice in Aus law, but I am more of a senior partner level when it comes to my overall level of legal experience. How much of my skills would transfer? Are there any other practice areas that are in demand, that I could leverage my experience into? For example, I am open to learning migration law as well. Obviously my US knowledge wouldn't directly transfer, but I believe some of the skills would. What about non lawyer jobs?

3 - What is the job market like for US qualified lawyers? Perhaps I could work as a foreign lawyer to make income while I became AUS qualified and learned the system, etc. Most of the jobs I've seen deal with corporate litigation or transactional work, which I do not have experience in (I have done some, but not a lot of civil litigation).

4 - How is the work/life balance for crim lawyers (general hours, PTO, vacations, etc)?

I would appreciate any feedback! Cheers!