for simplicity's sake just ignore actual moderation process and go by the rank 3 int gets the 3rd highest ext score for their int score etc. etc. which is an accurate enough way of describing the real thing.
maybe relevant, but unnecessary. you can cover the relevant content in uni.
on the other hand, you might never go and do something like va again formally, if you enjoy it.
Hospitals if you apply really far in advance like a yr.
otherwise u can try clinics etc. maybe ask careers advisor for a list of where people previously went and call up those places
keep in mind tho that @vishnay probably is comparing to schools in a similar tier or higher.
girra would still probs be better than your run of the mill public school.
i like different things, so my recommendations wouldn't be helpful.
tho, i wouldnt take cafs. seems like the units would be better used for testing one other possible subject that you might decide to keep in y12. for me, i would do physics.
i would take x1 (especially if u plan to do uni physics/engi stuff) or chem instead of investigating.
triple science is very doable. there's plenty of people who do it.