We just returned from an 8 day tour of the North Island of New Zealand. We rented bikes from Randal Brown of Aucklandmotorbikehire.co.nz. Me on an almost new Vstrom 1000, my wife on a brand new Kawa Versys. Great bikes, plenty of luggage space, programed GPS, fantastic accommodations, superbly run outfit. If you want to know how to run a motorbike rental business, rent from Randal and see how it's done.
BTW, we might have see a Harley in New Zealand but it was so far back in the twisties that it was hard to tell.
Dennis and Sheri