auscobra
There are a few T3's over in WA. All you've gotta do is wait for one to be a writeoff
Seriously, T3's have come up several times at the wreckers.
Check out this site:
http://www.fordforums.com.au/
One of the sponsors is a wrecker and often posts new arrivals directly on their Forum. That's how I got mine. Only problem is you need to check it all the time. Just check with your engineer which engines are ok to use in your state.