Google Standby Relocations, I think the website is something like standbyreloc.com or something. Basically, they have on there motorhomes and cars that need relocating to various parts of NZ, the dates they need them in the particular city and where you need to pick up along with how many days you have to deliver it....you pay $5 dollars a day plus petrol. You can contact them direct as well if you have specific dates etc, used it once, was easy and cheap. And no, I dont work for them!
