There's quite a few machines in the medium/large categories that are brought in for the peak season (november - february) with the odd one staying a little longer.
In general, the states, as well as the national body, will tender for local companies to provide aircraft in association with an overseas sub contractor.
These contracts are usually 3 years or so, with some variations.
In general, find a local operator that's interested in that line of work and work with them on tendering when it becomes available. Each state and the national body are on a different schedule for the tender process, so you may get a chance to make a bid every year.
Good luck! (BTW - I'm available
)
Zlocko - 206's are often used for providing the appearance of coordination & control so while most still have a bucket, it's mainly for training & decoration nowadays.