If I didn't already have a couple myself, I'd jump on this:
IBM Model M 1391401 Buckling Spring Mechanical Keyboard (eBay)
It's missing a Ctrl key, but otherwise it looks acceptable, is tested working, and includes an SDL cable. A nice clean-up candidate, I'd say. The seller has a 100% positive eBay rating.
BTW, if you're not interested in this, please don't post pointlessly negative comments... I'm taking my own time to post this, y'know? Thanks!
