For methods, our school provided us with this massive exam pack which had something like 50 papers, but I didn't really use it since it had like 4 pages of an exam on one page. A person in my cohort was nice enough to share a huge library of practise exam pdfs for most subjects. It had all the company papers, down to the early 2000s. So I really had more than enough practise exams on my computer for the time being, just printed them out and did them.
No, I didn't do all the VCAA questions last. I recall doing it by the year. As in, do all the commercial 2006 papers first...then VCAA 2006. Then do all the commercial 2007 papers...then VCAA 2007, and so on. Then on the final week I did all the VCAA exams again (it's unlikely you're going to remember every answer to every question again, especially if you spread the exams out)