Also, I'm pretty sure that you should get an alignment with the wheels you want on the car. I need an alignment right now but I'm still on steelies for winter so I'm waiting until spring for when I put my other wheels on.
Just a thought from a Lexus Tech; that the tire wear is from shocks/struts. Rims also could cause that but only if they were bent. The wear general goes from inside edge to the middle of the tire depending on the amount of camber and toe.
