Thanks.
The rear derailleur is a Mirage because it's written on it, so 1996 or 1997 based on the catalogues you just sent a link to... but to me (uneducated guess) it looks completely identical to earlier Chorus derailleurs. Other parts have to be Chorus or so because you guys say so, and earlier than 1996 because of the logo. I can't wait to see the bike, what the hubs and rest of the parts are, and riding this thing!