Tonight I finished up the window opening and covered any bare metal with etch primer. I'll need to re-paint around the window, and the back of the cab where I patched the rusted areas. I'm considering painting the roof white.
I don't really want to paint yet, seeing as I'm working on my truck in our car club shop, and there's a lot of dirty, dusty work going on right now. It makes more sense to paint closer to spring time.
What a huge difference the big window makes!