You could try this website which Averil put on the BB recently:
www.bdmhistoricalrecords.identityservices.govt.nz/home/

In a quick look I found:
Deaths:
Registration Number Family Name Given Name(s) Date of Birth/ or Age at Death
1919/3009 Boyd John 65Y

Marriages:
Registration Number Bride's Given Name(s) Bride's Family Name Groom's Given Name(s) Groom's Family Name
1908/1949 Elizabeth Ann Clements John Thomas Boyde
The first 4 figures are the year recorded.

You could also try:
www.archway.archives.govt.nz/
and
paperspast.natlib.govt.nz/cgi-bin/paperspast
and
freepages.genealogy.rootsweb.ancestry.com/~shipstonz/cemeteries.html
(These MIs and burials are worth the search, often giving ages and how long in NZ.)

There are dozens of websites with transcribed passenger lists to Australia and NZ - search through Google.

Sue