I have no idea whether your NZ market is TradeMe, but if you do plan to sell on Trademe, you are not allowed to dropship. In the terms and conditions it clearly states that you must have the items in your posession before listing them. There have been many traders banned from trademe for dropshipping, although some are still getting away with it because they have not been reported. There is a very active and nosy community posting on the community notice boards over there.
If you don't plan to sell on Trademe, then good luck with your search.