Is the extractor of an original 1894 different or substantially so from current production? Comparing photos of old and new show slight differences externally in the bolt and receiver, but I didn't find any with the action open or bolts disassembled.
Tried to google and couldn't find one, but there were a couple of sites that carry some parts for older ones. Even though they didn't show an 1894 44-40 extractor for sale, perhaps a call to them might end up pointing you in the right direction?
Wisener's - This place also has a machine shop for making obsolete parts.
Long Hunter Shooting Supply 
