Well after 4 days now of having the SSL rear and SL front and having had a 4 wheel alignment done i can tell you that no camber kit needed to be purchased. I was told this by a guy who works for ford and also by those who did the alignment at K-mart Tyre and Auto. Apparently the E series needed kits because the adjusting bolts on the fronts were shorter, ford changed this on the AU onwards and now isnt a problem. Also the
IRS i was told has plenty of adjustment.
And my car handles amazingly well now... turns in great and has eliminated alot of the push/understeer i used to have with factory springs... plus it looks sensational.