Thanks to you both for good advice.
Naru, the 2 gears from Subaru are, indeed, nearly $250 plus shipping. Not too practical for a trans with 266K miles on it. The car still does great but it's hard to spend that much--especially when we first bought the car to save it from the previous owner's intention to scrap it.
175eya, I've posted an add on the parts wanted category and had a few replies already. So far only complete transmissions from far away. Still maybe more realistic than buying 2 new gears from Subaru. Meanwhile, I've begun scrolling through other postings and still hoping to find someone who has the 2 gears we need left over from a project or catastrophic failure, etc. The real solution, as we all know, is to own a bunch of these cars!
Thanks again.