Yep, the '63's, and pretty much anything pre-64, is unloved in a lot of areas. Just look at all the new heater controls and instrument panel components available for '64-'66 trucks. Perhaps some day the parts market will open up. In the meantime you have to make due with what you can find.
The grille.... good luck... I have never seen a repro available so you will have to find a used one. I might have one, maybe. It will take me a while to look because if I do have one it's over at my dad's place. Also, go to the Parts For Sale forum and look up RJ and Colletsbro. They both have a bunch of '60-'66 parts. I've dealt with both of them and they are both awesome guys to deal with.
For the bed side panels, good luck again. The only thing I've found for new fleetsid stuff is partial panels. Maybe there is something but I've never seen it. Good luck in your search, I know exactly what you're going through.
