I am in the process of extending the grill shell on my 78 using a 74 nose section and fiberglass. Once I finish it, I am going to need a custom grill to fit in the deeper and wider grill. I have thought of perforated metal cut to fit, but thought I'd see if any of you have fabricated something custom. The grill material will be flat across the opening, but set back farther than stock. Any ideas?