MN '71 rear drum brake parts

Years ago I converted my '71 Bronco (small bearing 9") to 4 wheel disk brakes. I'm looking to go back to rear drums (mostly for the parking brake). I'm looking for especially the backing plates, but would love to find some that have all the shoes, springs, clips, etc so I don't need to chase down all of the small parts.

I might have a set of my small bearing 68 rear axle