Decided to just paint the valve covers as I am painting the rear bumper any way Ill just sand and prep the covers and paint them same time as the bumper.
Thinking red on the covers and wrinkle black on the coil covers.
You need to talk to your powder coater. They tend to have a lot of colors available and sometimes can mix up something. There's a guy that managed to match Mystichrome with powder coat. It's amazing what they can do.
You might have to talk to a couple of different places. Look through a companies site like Eastwood. If you can find the color they can probably use it.