[Brad54]

I noticed the holes in the backing plate in an earlier shot, but seeing them in detail, along with the holes in the drums, makes me REALLY wonder about that!
Cooling the brakes helps eliminate brake-fade, especially with drums.
But the thing about yours is that they are VERY neatly done. The holes in the backing plate are neatly laid out and spaced, while the holes in the drum face are also neatly spaced and in a difficult spot to drill.
They didn't do those with a hand drill with the parts still on the truck.

When you decide to unload them, let me know... I don't know that I'd use them, but I'd love to have them anyway!

There are three things about your truck that are very interesting: It looks like it has a sway bar up front: can you take a picture of it?
The power booster is a later model--the '60-'62 trucks had a funky two-chamber master for manual shift trucks, and putting a modern brake booster on without an adapter plate isn't just a simple bolt-on job.
The trans tunnel hump is a high hump, which usually came with the 4-spd granny-gear transmissions, but it doesn't have a shifter hole in the middle of it.

I also noticed that it has side motor mounts--those aren't usually on '60-'62 trucks either.

And I laughed when your son said he wanted to go camping in it--My son and I camped several times in ours!

-Brad