I dropped by Columbus Camera Group day before yesterday (Columbus, Ohio) and they had a really ratty C-1 compendium shade there on their large format shelves. Think it was in the neighborhood of $20. Had a lot of tape on it and I only glanced at it, but if you need one to rebuild, try calling them.
Also made the pilgrimage to Midwest Photo and saw Jim, fondled the new carbon fiber tripods and bought a box of Ilford HP4 5x7 and a cable release. Too bad the bargain basement is gone! That used to be my favorite place to dig around and find the most unusual stuff...