Hmm... what does he want for it? Am I naive in assuming that the ones who would/could pay for it are all in this forum anyway? Is he hoping that some rich folks take up the hobby sometime in the future?
Why not just list it and try and get Kotaku and Joystiq to pick up on the story. You have to assume if there is anybody hidden out there who might pay more than us, that would find 'em.