It is totally up to you on what you want.
I personally think that the interior would look better with the black leather and silver trim package. This set up would allow the switchblade silver strips to "move into" the interior.
But as I said, what YOU want is what you get.
I have seen the 20" polished wheels in person (on a black 2SS). They look totally AWESOME!
I have a IBM, 2SS/RS, Switchblade Silver SS stripes, black interior with Silver accents coming .... so I am a little bias