Buying quality parts becoming impossible.

I thought I would rebuild the wheel cylinders for the 8 3/4 I'm working on. All three sets are old oem castings. Went to 4 stores looking for a wheel cylinder kit. First store ordered two, arrived in different packages, get home one with used parts. I mean the seals are from an old cylinder. Went to hub store and get home to find out the dust seal wont stay on. 2nd store I buy another set cheap china made, but dust cover fits. 3rd store doesn't stock and can't get. 4th store can get 3-4 days but says they will be made in china too. Take junk back to 1st store, give up and buy new china cylinders. One is used and put back in box. I leave and go to hub store and buy two. Pick up a new Lisie 3 prong hone and breaks before I finish 2nd cylinder. What a waste of my time. Going to order from Dr Diff and should have when I bought the other stuff. Doh. Rant over.