Thumbs up on both the cladding and the wheels. The grey contrasts well against the black. Someone mentioned monotoned earlier, but that's hardly the case I believe. The colors you're proposing actually help to keep it closer to a stock outfit, rather then something overwhelmingly after-market. Not sure if that's what you're going for, but that's my ass opinion. Go for it!
And love the tires by the way. I'm in the market for the same. How much did you spend if you don't mind me asking. I'm getting in the range of $750 installed.