Andy, you won't find any info on the truck for trim and color codes, some years there was a separate tag with spaces for them but they were mostly not stamped so it's a detective job, the RPO's were on the original spec sheet, but if you look at hidden areas, you might find traces of original color - like where the inner fenders lay on top the fender flanges, under the headlight bucket flanges, etc - 2 tones were mostly white roof over whatever color
Bill
