Nah mate, you don't know the language of the West coast Tassie crowd. I'm told its a family secret

Yeah you can camp near the beach at greens for free, not the most secluded spot however. Theres quite a few holiday rentals which are pretty resonably priced. I stayed in the anna bay cabbins which were pretty good but a little pricey!

As far as cars go I would highly recomend getting a 4wd as alot of the spots dont have very good beach access and a 4wd lets you get to where it's happening easily.

The best advice I can give is bring plenty of coin. The petrol's dearer, groceries are dearer but don't let this put you off. January is a top time of year, good consistent wind and generally warm weather ( I can hear some of you mainlanders thinking this guys on drugs ). It does get warm, trust me. If you want to do it cheap there's plenty of camping options, 4WD would always be nice but by no means is it essential. You can still sail waves at Marrawah and flat water at Stanley without one. Might want to consider going down to Hobart also, good spots there too. If you want to know the names of some free or cheap camping spots around the state let me know, but if your coming from NZ with all your kit it's probably easier to stay at some accomodation. Petrol might be dearer but you don't have to travel too far to get to places, so renting a car shouldn't cost you too much in excess K's. Make the effort, you won't be dissapointed. Oh and if you've got a sister bring her coz I reckon some Hobart blokes have probably worn there's out.