Pat,
You can either fly into Launceston on a commercial flight and drive 90 minutes to Bridport, or the other option is to take a chartered flight in a light plane from Melbourne (Moorabbin Airport) which lands at the airstrip alongside the second and third holes. From all reports the landing can sometimes be a bit hairy.
Ash,
I didn't see the second course but someone in the bar was commenting that 10 holes have already been constructed. Matt Mollica has some photos of the land on which it will sit.
Chris,
No courses of any note nearby, until the new course opens next door. I assume that will be in about 12 months. However, you'll probably come via Melbourne so there'll plenty of opportunities for great golf there.
I'd also highly recommend 4 or 5 days of sightseeing. Tasmania has some beautiful natural scenery which should not be missed.
Sean,
The Marram grass on the dunes is thick and clumpy. Your odds of finding your ball are low, and if you do you'll probably be taking an unplayable.