I've seen it done and it looks a lot like the saleen r wheels, I think it looks good, just good luck on keeping it clean but when you clean it'll clean up easy.. Just your preference
Currently it looks bada$$ the way you have it now. There is nothing wrong with experimenting with plasti dip. Do it and you can always peel it off when ever you want. I plasti dip mine for 3 months now and I still like it. Come spring I might just peel it off. Do it!