New Zealand options
New Zealand is a very large country with long, difficult driving circumstances. Suggest you banish the idea of hopping across to NZ for 10 days. If you are serious about seeing the Kiwis, I suggest you pick either the South or the North Island and identify your interests e.g. hiking, sightseeing, touring. There are many ideas and recommendations posted in this forum. But NZ is not a place where you drop in for 10 days. It just isn't.