Metal parts finishes

Anyone know the best source for OEM finishes of parts - zinc phosphate/natural metal, red dyed, chassis black, etc.? Mustang Restoration Handbook (Don Taylor/Tom Wilson) has an engine color detailing chart in the back, but it is only a partial list. Cleaning and blasting components, parts, nuts, bolts, brackets, braces, clamps throughout but can’t always tell what the original finish was.

Clarification…late 67 San Jose manufactured 68 J code 4 speed