underbody finish/color 911 SWB 1968

[oldieslover]

I'm currently restoring a 1968 soft window targa SWB for a customer of mine.

The body is almost ready for paint, but I don't seem to find the right intel about underbody finish and color.
Al seems to depend on the year of manufacture, but exact details are hard to come by.
Maybe I'm just not looking on the right forums and sites...

These are my questions:

Is the front luggage compartment finished in stone chip completely, semi or not at all?
Is the front luggage compartment black or body color
Is the passenger cabin body color or black
Is the engine compartment black or body color (as far as I know it is completely
finished in stone chip)
Are the wheel wells black or body color
What color is the underbody/chassis


We want to be as close to the original as possible, so all information is greatly appreciated!