There was a (relatively) recent thread about reasonably priced Ferrari steering racks...
People seemed to think they were OK.
Not sure the cost of shipping down under..
Steering Rack Thread
Note: They've gone up since Sept. 2015!
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.