I went with the last choice. Black with IO interior. I thought IOM paint would be a novelty that would wear off in time. And yes I did think that if the orange was different it would look funny. Like black pants with a black shirt that is a different share of black. Much better with a different color shirt all together. The interior will be really not so novel because it will be accented in black all the way around kinda breaking it up just enough.
But jmo of course. As long as you realize that you'll have to wash the car three times as often.