Thanks for all your suggestions. I am aware that the second hand market for grand piano is very small in HK. And to find a decent quality one will need a lot of time & luck.

I am just trying my luck here, or I will end up having to buy a brand new one - which is also good... but a bit too costly x_x!!
Hi asagohan, do you find your dealer honest? Are you happy with your piano now? If you don't mind, please PM me the phone number for contacting them...
Several years ago, when I was looking for a 2nd-handed upright piano, I have been to some piano shops in Sha'tin. What I have seen totally scared me!! Those people can do every un-thinkable things to make a rosted piano look like new! If they are honest, having such skillful people is good. But if they are not, they can "assemble" a junk piano at no cost, then price like a new. Anyway, maybe I am just being too "sensitive"...
Thx & rgds,
Tannie