And you bias judging of Simon RX7 from this forum at the fulllock event {also his wheels going missing}.
Perhaps Simon ought to come to Queensland then - Shano's perhaps the first aussie AE86 to win a drift comp in Australia ...
To be constructive, you may want to get in touch with the people at Twincam.org.au as there are a couple of ppl such as Anthony Kellam who have done a SR20 conversion.
Got $10k lying around? From memory, Skyline R31 diffs are the way to go ...