Amazon have the Motorola Moto X (2nd generation) - GSM - Unlocked on sale for $299US, this is usually $499US on Amazon or around $700 on PriceSpy/TradeMe.
YouShop costs estimate to around $30NZ. Exchange rate is roudn $430NZ and the whatismyduty cost is aorudn $114NZ.
That works out to being around $580NZ landed with tax.
And remember, you can use our exclusive code from NZ Post to get 10% discount on YouShop. Code: bargainbros10