Painting cowl panel

Had the same problem with the painting on my 73 Duster......mine was kinda yellowish and orange. My body man, used some good quality spray undercoating (with a plastic tube attached) to help cover the old colors inside there then made sure that he got ample color when he was doing the body. I was really worried about this area since you don't have a whole lot of choices here.
Good luck on your project.
Greg..........mtn_jake