Below I have posted a video of someone updating an old carpet with dye. My carpet is tan so it may take a few coats. The good news is that my carpet is tiny.
If the weather holds up, I hope to get the Fiat out into the driveway this weekend and sand down the interior and cowl area. Once that is finished I can top coat with Master Series Silver and then do fiberglass repair. Everything will be blacked out and I will start re-assembly. I also need to black out the console and refinish the door panels.