Tis is the guy I bought my adapter from
http://www.pnc.com.au/~bill/Transmission.html
Bill is quite helpful and doesn't mind a chat if you want to ask questions. He runs frame buggys and has adapter templates for almost anything. My adapter and flywheel set me back $500 from memory.
I would never deal with Ron Hadfield of the rodshop because he is an asshole to be blunt. I called asking for an adapter for the same application and he ask why the f**k would I want to do that and that if I couldn't find an adapter to just give up.
Have a look throught the forums for previous posts that I've made about my car. Also look at
http://ricola.co.uk