What color for control arms?

I will throw my two cents in here. My friend Keith (whose 69 cuda vert was consumed in a fire) had redone his. He painted them with a cast metal color to look like raw metal, and it did! Then for the cosmoline look, that will last, he sprayed rustoleum hammered gold paint lightly. They looked NOS when he was done! I suggest that you take some clean metal, try the cast metal paint and then experiment with the hammered gold. I think you'll be pleased.
David