Instead of the silver there is a color in the PPG Euro chips that looks almost like the straight grey in the picture. It has a lot of pearl in it so when the light hits it it looks heavy metallic. Very different as there are a lot of silver schemes around. Maybe throw a rasberry candy over the grey till it is quite dark.
Cool looking project. I have the paint code somehwere if you need it.
I voted for number 5. I've always believed that a good two-tone should have the darker color on top. I think it makes for a much more dramatic finish to the vehicle.