Mat,
You will have a ball.
Firstly, I wouldn't take jerry can with you, there is a Bp that sells ultimate about 10 mins south of there. Forget the towns name.
Secondly, I would take some oil, coolant, screw drivers, a socket set and possibly some pipe clamps. (pipe clamps from experience)
Thirdly, if you can I would tow your car there. For the sake of hiring a car trailer for $50 - $100 for 24 hours it's much cheaper than a tow back to Melbourne! If I was going to Sandown or Calder I would just drive but Winton. Your call but, from my position once bitten, twice shy.
I went up there in October last year, let me say f**king awesome day out!
Don't mean to scare or put doubt in your mind but heres what happend when I went.
http://www.skylinesaustralia.com/forums/in...1&hl=winton
I may even come back up there my self.
Go crazy or be conservative, either way you will love it and be hanging for the next one!
Cheers.