I've been looking for old cherry keyboard on eBay but hardly see any these days.
I find them more often on German eBay, even in layouts other than German.
Yes I too know about eBay.de but haven't had much luck. To be honest, since being burnt a few times with overseas eBay transactions, I prefer to wait it out for stuff in the homeland, the UK, even if its cost just a few pounds more.
On the whole whilst the WYSE set I picked up is a little worn, for £28 including postage, I really can't complain. Of course a few years ago, when there wasn't so much interest in mechanical keyboards, I am sure such items were worthless, but then you must consider, they perhaps didn't even show up on eBay listings. It breaks my heart to think that there are double shot Cherry MX keys being thrown away due to their apparent worthlessness

Typed on my FILCO TLK (green LEDs) with a near complete WYSE keycap set!
Seasons greetings to all.