I am a newbie here but have restored a few trucks over the years. My last restoration I used Martin Senour 43697 for the interior, because it looks close to the factory finish and is more durable. I have a theory why some old paint looks silver, lead paint. Have you ever noticed the high metallic blues look more silver when they fade out? The blue pigment disappears and the durable lead stays but the paint takes on a grey finish. It is hard to find a part on these old trucks that haven't been around the suns uv rays at some point.

Dustin