#25 CABLE CONTROL; Looking for part!

I am looking for part no. 4F2157.
This is the outer (driven side of the clutch assembly) clutch/brake drum for CCU 9D 5449.
I have one from a unit in the 9D 20,000 range, which has a subtle but significant difference.
As I am only concerned with operating a dozer at this time, I think I can assemble without the left side clutch being functional. but eventually would like to be able to pull my scraper. Semi-local source (Norcan Parts, Spokane, Washington} has probably seen their last early 25. Unfortunately, the last one I saw was (sadly) scrapped several years ago, without my having a chance to rescue it!
Scrappers... Grrrrrr.