I would leave the mirrors silver. One idea is whether or not you can find a vinyl shop that can cut you some vinyl to fit in between those scoops of the SLP hood. I have a photo of that somewhere. If I find it I will post it up for you. The reason I say vinyl is because you can always remove it if you don't like it. Unlike painting them on.

Also I agree that the rear letters painted body color is the way to go. I had mine color matched (silvermist) a few years ago.