After almost 2 years of waiting (plus a few nightmares of my driver's test in the last week), I finally have my license!!
I discovered in the past couple months that the truck had been repainted at some point. When I tried using a wire wheel to remove a spot of rust on the rear fender, I started grinding through some surprise Bondo, revealing about a 7-inch long section of rusted through steel on both rear fenders!

The stainless fender rims must have trapped rain water against the body for long periods of time, causing it to rust. Nothing serious or structurally damaging, but it still annoys me!

The good news is I checked the rocker panels, doors, and cab corners, and they are completely rust-free!
The truck is being repainted at some point anyway, so I removed as much rust as I could, primed the bare steel, and will let the body shop work their magic.
I was going to install the headlights/grille when they were done, but the original pins that held them in place were all brittle and breaking apart. I tried searching all over the Internet, but couldn't find that part. I will be going to the local Fastenal to see if they have a decent replacement.
I sandblasted the very corroded battery tray, and my Dad powdercoated it in textured Black. Now it looks like I bought a brand new one! The idea to leave the metal uncoated was not a moment of brilliance on Ford's part!

I'll try to get a picture of how it looks later.