Many thanks for the reply David. I’ve made a bad mistake on this. I advertised it on the AstroBuySell site for £650. In view of what you’ve said, not surprisingly I had an offer to buy within moments of placing the advert, plus several more very soon after. I duly marked the ad as “Sold”. The buyer has now pulled out. I’m reluctant to reopen the ad however as it would appear that I’ve hugely under-priced it. I don’t think it would be ethical to re-advertise at a higher price though?
P.S. It isn’t the ED version.