im not sure about the rear lower tie bar pushing out the camber because all it does it stabilize that area by adding the bar there.
but yea, the camber kit should be able to fix it...dont see why not.
the TL-S should fit the 6th gens...here is a parts list.
oh and as far as the suspension bars and stuff. the ebay ones are uauly adjustable, thus having weaker points than the solid piece bars such as neuspeed, DC...
i believe the sway bars will improve the most though.