G'day mate, nice 02!
I'm in Melbourne so not too far away at all. Have you joined the BMW CCV yet? If your in Melbourne sometime soon, i'm sure we could arrange a meetup :-) its great seeing other peoples 02's around here.
By they way, i recently sold a guy a Fjord Blue 73tii and i think he was from Geelong, so your not alone down there!
Also, email me and ill give you the name of a guy with all the performance parts you want, he can rebuild your engine as well. He built my car - click link on my sig to see specs :-)
Good luck with it..
Tom