Some links that you may find useful:

Celebrants Aotearoa: 
www.celebrantsaotearoa.co.nz

Births Deaths and Marriages (for your marriage documents):
https://www.govt.nz/browse/family-and-whanau/getting-married

Funeral Directors Association: 
http://www.fdanz.org

"A successful marriage requires falling in love many times, always with the same person.” 
Mignon McLaughlin