8 3/4 SBP brake options

Picked up the new drums today from O' Reillys. Look good, made in China. Won't know for sure if they are correct until Saturday when I go to the shop, but the measurements look correct.
The parts guy was confused at my urgency to find these drums. I explained to him that my sources said that the drums were very hard to locate, and that I had tried several sources without any success. . In fact, the O 'reillys website did not show 10 SBP drums as available, yet he located them easily. Took 1 day to get them in.
He told me to pass the word to anyone trying to find these. They are Brake Best Select brand, part # BBR 2932d6s, $ 49.00 each. All of the brake parts are available also. Larry