OK, got the firewall shot today with #503 light green which as I have said is the original color of the truck. I think it will be a nice pop of color against the mostly satin black engine bay. I am going to clean up the cowl section and shoot it in the same color (I think), so it will peek out from under the cowl. This color will darken some after I get clear on it, but will wait for that so I can do the cowl section at the same time along with the rest of the cab after I clean it up.
Again not perfect and I am not striving for perfect or I would not have painted it in my driveway.