Sounds like he's decent then, maybe you just need to check if he does only charge for full hours.
Australia has a national health system for citizens and residents, like New Zealand, and will treat anyone that's injured. If you're not a citizen and there's no reciprocal health agreement in place (which I doubt anyone does with the US) then you'll get a bill. Sure it'll be less than in the US by a fair margin, but still could be significant. So yeah, health insurance is necessary any time you travel, and will cover things like evac back to the US, etc.
Just FYI my private health insurance costs me about US$45/month and covers everything other than GP visits and prescriptions. They don't cost much anyway, they're subsidised by the national health system.
It reminds me of the RAW zealots who berate the jpeg shooters but when I say I made my first $100,000 in photography shooting jpegs and ask how much they have made shooting RAW I never hear another word! [And just so we don't start on it, I now always shoot RAW.] But that's the price of open forums.

