Any seen any upmarket Furniture-style Digital pianos for sale second-hand or very reduced?

ToneControl

e.g. Yamaha CLP 575, 585
Kawai CA 63, 65, 67, 95, 97
Roland 504, LX7 etc

maltingsaudio

These guys are worth a call https://www.abbeypianoservices.co.uk/pianos/digital-pianos/

VimFuego

try your local musicmart facebook group/s. I see a fair number of digital pianos on the ones near me, though I don't know enough to know if they are high end one or if they are good prices.

ToneControl

I'm looking for ones that were £3k or so new, and look like a real piano
(and are not more than 5 years old)

Or a really good new price
Kawai CS or high-numbered CA models
Yamaha 585, 575, 685, 675
Roland 605, LX15, LX17