That price is currently quite realistic. I've been looking into getting an Adult ADHD assessment and the prices range between $1000 - $2500.
That being said, I do take issue with the line "Feel taken advantage of with those prices". Yes Psychology and Psychiatry can be very expensive, but it also a very long and expensive road to become qualified in these fields. I'm a second year psychology student. To become a registered psychologist it is at least 6 years of study with limited and highly competitive places offered in each degree (Undergrad, Honours and Masters). My debt is already massive and the dedication the course requires effects my ability to work. So while the fees are expensive, that is what's necessary to start paying off student debt and start earning a living again.
I agree the mental health system needs an overhaul but a MASSIVE part of it is more qualified people. There is simply not enough qualified people to meet the demands. If Dani really wants to help she should look into becoming community mental health worker, volunteering with lifeline or studying to be a counsellor or psychologist.