Depends if the B200 you are going to fly is a Proline version then Maroochydore would be the go, but if it is a old clunker then the Ansett sim at Tulla would be a cheaper option.
A gentlemen by the name of John Chew, used to do some work in the B200 sim at one stage for various companies, maybe worth giving Ansett Sim Centre a phone call.
The old clunker will give you plenty of hung starts, hot starts, engine failures, engine fires, low oil pressure etc for your hard earned dollars.