There is one on the FAA
Flight Standards Information Management System - SA-330G and SA-330J, Rev. 3 Date -- 06/19/1989 and push the "PDF" button. Et voila!!
Let me see - it is first of type in NZ? Are you using FAA TC or EASA TC? It may affect the validity of the document as the Master that you have to derive your own from for each aircraft.
Are you going to use the machine or put it in a museum? The issue may be the "knowledge" with legs required to operate one which is also getting pretty old!!