If there's enough paint left on the dash, then the standard technique would be to take a small chip and turn it over and match the underside color.
I'm not sure there was any paint back there from the picture, and interior and exterior badging may not match, that usually varies by model, so you must have seen one or have reason to suspect. Ask a concours judge.
I've never seen that "bulk" paint listed by year just color. They sometimes list the interior trim color formulae with the exterior color chart, never the badging as these are made by others to GM specs/for replacement in collision repairs.
Somewhere there would be a drawing but as far as I know, sadly, GM does not divulge that other than by license, if available. Other brands you can find drawings in libraries, museums etc.
If it was me and I've done this work before, since you don't need much, I'd just use plain old store bought red spray paint, like rustoleum, or lacquer. You spray into a container to catch the paint, and apply with a whateverUgot; toothpick, small brush, or striping brush. The solvent in the spray paint levles out and flashes off so it dries quickly. For larger parts like a grill I've masked them and shot the rattlecan paint on. You can get sign painters colors in pint cans at most places. Don't overthink originality.
