Sorry no reply.
I have an inner grill to do. Have my ideas but they are untried. Did not want to send you barking up the wrong tree. My inner is cracked. Figured on reparing the cracks with epoxy putty while grill is installed on truck. Figure that is my best chance to not have it crack again. Paint color I am thinkin on going with is argent. Dunno what I am going to use for primer yet.