For those of you who may have searched for modern paint codes and came up short - The PPG 32669 paint code for Thistle Gray (Radiator grill bars 1954 Chevy Truck 3604) crosses to an Akzo Nobel FLNA7076.
I tried and tried to find the 32983 Anvil Gray ( Bumper and Hub Caps 1954 Chevy Truck 3604) and lo and behold I called Orielly's Auto Parts and they are able to use the PPG 32983 and cross reference within their paint system.
I'm hoping this information is helpful to others. I have not sprayed either mixed paint color but once I do, I'll take pics and share them.
Have a great weekend , everyone!
Ron