surfing NZ-looking for travel buddy

Planing for a 60 days surf trip july-august 2017.
Thinking about rent/buy car or campervan and looking for travel buddy to share the costs.
Any tips for budget travel along the north island is welcome and appreciated.
Thinking about rent/buy car or campervan and looking for travel buddy to share the costs.
Any tips for budget travel along the north island is welcome and appreciated.