12 months is usually 50k. 35k is a bargain. But that's assuming you're on a non-o already. If you're only on a tourist visa then you HAVE TO go 15 months. So the cheapest option is 17k for a medical 3months... Then you can convert to the volunteer 12 months.
absolutely astounds me at times. Then they'll also continue the troll with "it's illegal" .. seriously? it's like telling a fat guy to stop eating bacon and somehow expecting that's it's a life-changing realisation for him.
because Australia is expensive, there's no work, people are unfriendly & arrogant, generally the place is dead boring and it's such a controlling nanny state that it's even illegal to get drunk, even in a bar serving you booze.