Disklavier

I'm thinking of selling (due to a potential long distance move) my MPX1Z
upright U1 disklavier piano, MarkIIXG with DCD1. This is a smart
pianosoft capable version, and was purchased new from Chappell, London,
in early 2002. The piano is in as new condition and has been regularly
tuned and maintained, and had very little use really.

What kind of price (UK pounds) would be sensible to advertise it at and
the minimum I should think about accepting? And is anyone thinking of
buying such a piano? :-)

Thanks,

James