Drum Brakes Sticking

The shorter shoe material is common for the primary side pad that faces to the front, so that sounds OK. The passenger side should be the same.

Are you saying that the front shoe on the drivers side rear was worn unevenly, with the bottom worn badly? I can only guess at why may have caused that:
- Perhaps the front piston in the wheel cylinder is not moving and is frozen in with rust.
- The adjuster (that contraption at the bottom between the shoes) is missing the spring around it.

The springs sounds good, but be aware that they can get weakened and not work right. I have not ever read of any way to test them, so it is best to just put new spring kits in.

As for the hose, if it is old enough to be damaged by clamping, then it is old enough to need replacing it anyway. For a car likethis, all 3 rubber hoses shoudl be repalced (2 front, 1 rear). The clamping just makes it obvious faster! The issue is that the inner lining get hard and brittle and falls apart and pieces get jammed inside and block the brake fluid. And as said, for the rear brakes, it would effect both rear brakes, not one side.

Again if you would not mind answering:
- Drum brakes all around?
- Wheel cylinders rebuilt/replaced?