Need to replace my 81 international's parking brake drum and pads

[Allan Balmer]

So now that I know what I need to fix with my power steering system I'm looking for the things I'll need to fix my parking brake system. It looks like parts of it are cracked (had a fire a few weeks ago it's a longish story). Ever since the parking brake has as expected not been working. And I'm not about to replace the springs and tighten the cable until I know I have solid shoes and a drum.

I've tried calling around to the various parts stores around and pretty much anything for an international of this age they can't order or don't carry. When I search online I find a ton of stuff for GM every time and it doesn't matter what part I'm looking for. So I'm wondering if these GM parts might be able to bolt on with little to no modification/fabrication needed.

I can add pictures of the parking brake assembly later for those who need to see what I'm talking about before giving advice.

All advice and recommendations are welcome.