Do you happen to know which color is closest to the lighter parts of the interior? There are several greyish colors in their catalog.
This is a question I have also. I'm partial to the SEM interior spray paints. I've found the caps are pretty accurate as to the color, and I used to have a auto/paint supply store nearby that carried all the SEM interior colors so I could take a part in and compare.
The dark charcoal is SEM 4020
The lighter gray is SEM 4500
I took non faded interior pieces in to the paint store and they matched them perfectly. I bought a pint of the 4020 and a quart of the 4500. I am restoring both the interiors of my 90 eliminator and 91 Pioneer.