Hi, I'm selling my Schneider CPC 664 (German Amstrad CPC664), all the keys are working. Sadly the drive is not (should be fixable). The CRTC is a HD6845SP. Let me know if you have questions.
Please see here:
https://www.ebay.de/itm/263990042615 (https://www.ebay.de/itm/263990042615)
Bump! One hour left! Be quick! :)