and in some cases difficulty to hunt

You know my answer to that line Nitro!

I think you got the list right. Maybe Banteng above Buffalo - scarcity, hard to get to area ?

Hard to get to area? with modern transport hmmm!

Hard to get to area i reckon is walking 20 miles into a "closed area" chasing sambar stags!

Many places in Vic`s high country dont even have chopper access.