John,
There is always Dart.. but the baskets are heavy and have a reduced vne. I dont know what it is like in OZ but in the states you can get a flight approval 337. Check this out, it is a fabricated ski rack for the 206. it is alum. welded and mounted across the skid tubes like a basket , , real light, skis secured by bungees. Classic helicopters in SLC UT uses them. Firepilot, may have better pic's than this , it is the only one I could find on the web.
Its a pretty slick setup.
The other option would be a fiberglass pod like the one on the Astar I flew last summer. It weighs 65 pounds and has no vne, it is a 337 too..
RB
