I've just had this message from my daughter, who received it via the owner's sister. Apparently it has already been offered unsuccessfully on both eBay and Freecycle. I have the owner's email address, so if you are interested in following this up please PM or email me.
"Cavendish organ - well loved and played but just too big for us now.
It has two manuals (keyboards), foot pedals, and effects including a
rhythm section with tempo and volume controls. Would be ideal for
beginner at home/community group/care home type scenario and I'd love to
see it go to someone who will love and use it! It is big and heavy so
collection would need to be in something more substantial than a car."
I do hope this is an acceptable message as it's not actually for sale. I would really hate to see a working instrument dumped because the owner can't find a new home for it.