I'm just new too and have my sleeve surgery scheduled on 18th April.
Not sure which is the better PHI, but the website iselect may give you some options. I am in HCF (which had a discount attached, being a former NAB employee!) It's probably a good idea for you to look at PHI if you are planning a baby in the future too!
It is great that you have made your decision to have the sleeve. Often it's making the decision which causes the most stress! I also feel it is the best option for me as it is long term and will teach me to learn about portion control. I had an Orbera balloon in for 6 months a few years ago thinking all I need was a `kick start' but I was wrong. Once the stomach is back to it's normal size it's very easy to creep back to larger portions again.....and hence weight gain!
From what I have learnt from others on this website, establishing a more healthy lifestyle both in diet and exercise will also be important going forward for succcessful weight loss.
Wishing you all the very best in your new venture and sharing the journey with me!