I have 1950 3100 series 1/2 ton, looks like Mariner blue was original exterior and some kinda gray interior, i keep reading about this champagne color that was cab interior then i read about a sheen grey poly color? is there any way to know what interior color would of been used with a mariner blue exterior, i dont believe the interior was any kind of champage as it looks some kinda faded grey,im not really happy to go back grey but wanted to stay original, any ideas on using champagne and was it possible some 50 models used that cab color? Thanks in advance for the help