I got a couple of Wyse boards (840358) in the mail today - I won them from the Indiana guy on eBay who sells them in pairs. They just came in and I was pleasantly surprised at their condition - one seemed nearly perfect other than the dirt on the plate. The other's caps also seemed fine, although a little dirty (nothing a bath can't fix), but there's some pretty gross dirt/muck underneath and I'm pretty sure I saw a very small bug run out of it.
Outfitted my QFR, putting away most of my
MX8100's keycaps besides those needed for moogle. Might seek one out sometime soon but I'm in no rush.. I've spent a lot already in these past two weeks on keyboards haha.
I was also able to get a decent phone camera shot of the vintage/normal mix of black switches on one of them: