Hi,
Thats a tricky one, as you need to have relevant experience in the business you wish to run. If you ran a property investment business, or had experience in property investment, that would be fine. NZIS want to know that if they grant you a visa to run a business, then you'll know how to run it.

Maybe another option for you would be to try and secure a job in Management, apply down the skilled migrant route, and then go in to business once you have been granted residency.

It's a much simpler, cheaper route to take, thats for sure!