Thank you for providing such a comprehensive resource. Well done to all involved.
For information on the medal the NZ Government instituted in 2006 for those involved in the body recovery, crash investigation and victim identification phases of Operation Overdue see the NZ Defence Force medals website: http://medals.nzdf.mil.nz/category/f5/f5c.html
The medal is the New Zealand Special Service Medal (Erebus). Applications for the medal can still be made. Eligibility and application details are on the web page given above.