I was thinking gunmetal, which is similar to a charcoal.
Since you have a grey interior you have a ton of possibilities.

although i think the paint on this runner is awesome

http://www.4x4wire.com/cgi-bin/gall...ge=w_tillis.jpg&img=&tt= 4x4wire


1994 Toyota Pickup 22RE, EB 268 cam , 2.25 LCE exhaust.
1988 Toyota 4Runner, mostly stock but hopefully not for long