I am a German (20) that studied in Hamilton for half a year and is now going to South Island for the rest of my stay. I have a van that I shared with a classmate who is leaving NZ earlier. Therefore that seat is available for anyone that is adventurous, likes hiking and is interested in exploring the island while saving travel costs.
I am going to leave from Hamilton going for Tongariro Crossing, Lake Waikaremoana, Napier and wherever the weather is nice on the way down to Wellington. The van is customized having only the two seats in front and a sleeping area in the back which can be shared. It has a gas cooker, is in general well equipped, but not self-contained.
If you're interested, just send me a text to *******515.