Welcome aboard , there are a few members on here from the Great Southern land , MTD do the parts distribution in OZ they are in Victoria
However I doubt if they have stuff for your old girl
As for the number of Cub Cadets they are reasonably popular along with Toro ,MTD , John Deere and Husqvarna
Greenfield are an Australian brand and are bullet proof
Oz
Look what I found for you
http://www.ebay.com.au/itm/Internati...kAAOSw3mpXJ-o9