If you want to share my tin, Sunny, PM me. I got 4L of PPG, but I don't use it that fast. PPG won't sell you less from what I remember. Am Melbourne based.
PS: I'd recommend against buying Alodine - it's a bit of a toxic mess and buying it is the easy part. Disposing of it is somewhat tricky. If you want to Alodine, I'd recommend talking with the guys at Collins Anodic in Blackburn - it will cost you a little, but save you a lot of time and messing about with nasty chemicals.