Rear Drum Brakes on 1960 Suburban

[MASTERBrian]

Right now I have the stock Eaton Axle on the rear of my '60 Burb. I'm trying to get the brakes rebuilt, but am proving to have a heck of a time finding the correct parts.

I went to O'Reilly earlier today, because I was sure I had looked once and they had everything....well, now I'm not so sure. The first clue should have been when he kept trying to look up stuff for a '70's C10, because that's what everything has to cross with. I swear he went up to an '80 trying to figure out if he could turn my drums. I finally found the drums in their system through my phone and we got the specs and I think I'm good there.

The drum(s) appears to be Part# 2005DGS - Mine seem to agree with this.
Specs
Outside Diameter (In): 12.36 Inch
Overall Height (In): 3.08 Inch
Bolt Pattern: 6 On 5-1/2 Inch
Bolt Circle Diameter (In): 5.500 Inch
Center Hole Size (In): 3.57 Inch
Discard Diameter (In): 11.087 Inch
Discard Diameter (mm): 281.6mm
Nominal Diameter (In): 11 Inch
Nominal Diameter (mm): 279.4mm
Number Of Bolt Holes: 6
Outside Diameter (mm): 314mm
Overall Height (mm): 78.17mm
Bolt Circle Diameter (mm): 139.7mm
Surface Depth (In): 2.40 Inch
ABS Sensor Ring Included: No
Center Hole Size (mm): 90.6mm
Material: G3000

Wheel Cylinders
Mine have two bolts and attach from the rear, they tried to sell me some that had one large hole at the top that goes over the stud the hardware goes over. What we settled on was Part# 13388 & 13387, but there also appears to be another totally different number available through LMC and Amazon. What gives?

Shoes
They sold me shoes, which look very close to same but are off of a 1967-75 C10 Suburban. Part # 280. Again, close, but not 100% exact. The ones that are listed for a 1960 are Part# 33, but they look to be even more different than what I have. Amazon lists some shoes with the part #228, but parts store can't cross that number, but Amazon shoes it to be correct for my year.

Hardware
The hardware they sold me, at 1st glance appeared to have matching pieces, but alas was different and I think crosses with a 70's C10. H2508, H7018 & H2509. I'm not finding anyone that lists the correct hardware, but there is some universal Hardware, but of course they say not in town. My hardware is pretty rusty, so I doubt I should trust the springs, thoughts? I'm hoping another parts store can mix and match the hardware parts.

Anyone have any experience or suggestions here? I have another axle off a '62, that's also an Eaton. I'll pull and compare, but my guess is mine's been frankensteined together, so who knows if the other one has. Got it from a board member, maybe I'll ask if he knows any history on it and it's parts.