I came across your message the other day while doing a google search for something quite different.
i am directly decended from Wenzel and was born and raised on the family farm at Paterangi along with my 2 sisters and 2 brothers. The farm is still in the family being owned now by Ross.
One of our cousins has produced a nice little cartoon strip of the family history and I could send it to you if you can send you mail address to me. Suggest you do so by separate email to keep it private! I also have a reprint of a school journal article on the history and background of the Puhoi immigrants. i also have some stories published in a school reunion publication about family members which you may find interesting.