Rhengineer,
You possibly could come down here and get rich,........provided you're prepared to import a shipping container full at a time, it's the freight that kills us. If I buy a Briggs and Stratton engine here, it'll cost me $100 per hp, I used to run a business mowing grass, and at the time a 20hp engine was $2000 plus gst (10%) when the US price for the same engine was $400 plus freight, but it still meant that I could land it here for around $1000.
The answer to the question of do we have to import this stuff...yup! because the local cost is even greater.

Rob.