49-50 chevy help.

It's come time to paint the dash on my '51 Chevy Ute, but I'm having trouble with the dash color. I have the original Du Pont paint codes for 1951, but the suppliers here can't cross reference them unfortunately.
They are Duco s/n 1144 Dark Gray Metallic (upper inst panel)
and Duco s/n 1146 Light Gray Metallic (lower inst panel)

Any you paint guru's able to help out please???

 

ask the guys over at www.chevytalk.com they might be able to help.