A few additions to the list.
Engine color: Generator brackets.
Satin Black: Heater core box.
Satin Black/Natural: Heater box mounted hose retainer/guide, 1 satin black, 1 natural (haven't sorted that out)
Gloss Black: Fresh air intake grill bezels & screens, passenger side firewall air intake, hinge adjusting access plates, hinge brackets.
Went with gloss for battery tray, rocker cover & oil filler cap since all seemed to clean up slicker than the NOS heater box.
Still need to resolve radiator brace & horns but first glance looks like gloss.
Radiator, generator, starter might be satin, haven't tackled air cleaner yet.
Front spring retainers were gloss black inside, NOS springs red oxide, NOS trunnions dull satin black, cross tube gloss black, NOS control arms natural. Some traces of black on other steering parts. Used gloss on everything.