I found the link to place order for parts:
http://www.pstc.panasonic.com/Epartr/PartsListChoice.aspI also replaced the 3.5 floppy drive with a GoTek USB floppy emulator. It works very well but the floppy controller in the piano is slow. I use a 4G memory stick and the GoTek sees it as 100 floppy disks which are addressable. Cost 27.95 on eBay.
Repairing the keys I am using several approaches. I have first used an acrylic plastic polish. This has smoothed much of the damage and now playing the piano the damage is hardly noticeable.
Next I plan to use an acrylic repair kit. This is clear material that can fill pits and cracks etc.
Lastly then move some keys and also order replacements for a few of the severe keys. I did find a service manual for 5.00 on the Internet and it explains in detail how to replace keys.
So far I am pleased at the capability of this DP even tho it is 10 years old. It has features that many of the newer ones still don't have.