Hey be careful getting your tires mounted at Sam's. Make sure that they have the right equipment for mounting tires on big alloy wheels, and make d*** sure that they have somebody that knows how to use it. Sam's club bought me a brand new 17" M3 wheel a few years ago when they scratched one up trying to mount a 45 series tire on it.
And tell them not to use an impact wrench on your wheels, they'll scratch the hell out of the lug nut bore!!!