Andy (longhornman) left the forum years ago and hasn't logged on since. He was a true wealth of knowledge on these trucks.
My truck had a blue vinyl trim with a medium blue paint interior. The entire interior was blue. I was a teen and didn't know any better and spray bombed the entire interior with royal blue
I was 15 at the time, but from what I remember: Entire interior was medium blue, the door seal was the divide for the blue/white. The entire back of the door was blue. Door panels were metal and blue. Steering column and wheel were blue (still had them in storage up until a couple years ago), dash pad was blue, and my truck only had a driver side sun visor which was also blue. My seat was different than the one posted in the thread you linked, it was 100% blue vinyl with a blue piping around the end. Dash was a 3 hole, flat black with the silver around the edge, the backside of the glovebox was silver with the face having a wrinkle black finish with silver around the edge.
Couple pics I found with the factory color coming through.