I have just been contacted by a chap I sold a Claude Butler too. It was in good condition, then I fully serviced it and it rode well.
He was a nice chap and we left on good terms. I never expected him to get back in touch and say he had ridden it to Vienna.
It nice when the buyer keeps in touch, I very reluctantly sold my 1963 CB a few years ago and out of blue I got an email with photos from the girl who bought it, reassuring me how much she was enjoying it and looking after it.