Depends where you want to do it and whether your looking for something full-time or just casual. Plenty of casual guys out there operating 182s and 206s on weekends, they'll generally give you a go and then if your good enough help get you issued with your Jump Rating, its not needed straight away if I remember the regs correctly, but you DO NEED TO GET ONE to continue.
If your looking at doing it fulltime most places operate turbine aircraft these days, eg, most of the cairns/townsville operators seem to be using Caravans now so you'll need yourself a turbine endorsement on the PT6 before they even look at you and preferably some time on the Caravan itself.
Done a bit of jump pilot work myself and find it quite rewarding if a little under-rewarded! But thems the breaks, good luck with it, PM if you'd like any specific info.