Hi flares,
I understand your frustration - I went through a similar thing with lack of resources and the like. I'm afraid I can't help you directly, because I don't have any exams on me. But here is some more general advice if you're really struggling to find exams:
Make your own.
That is, find a text - any old text - and analyse it as you would in an exam. There is absolutely no shortage of texts to choose from. If you're struggling with this, let me know. Work with friends or by yourself, in consultation with the VCAA exams that you have alluded to, to construct your own essay prompts and short-answer questions. I actually found this quite useful (thinking as an assessor would) to make myself more familiar with the types of questions that would likely be given.
Best of luck. I know that this isn't ideal, but it's better than nothing if you can't find any exams!