Hello and welcome. This is really just a forum for "hellos". You'll get a better response if you put this question in "Pistols and Revolvers" or even the "General Firearms Discussion". Also, if you put in a request to one of the Moderators to join the "Equipment Exchange" forum, you can list the pistol there for sale. Of course you'll have to possess a PAL with a 12(6) qualification, the same as the person you would like to sell to. I have to say, though, if you can afford to keep it, that's what I would recommend. It's a really elegant little pistol, and besides, unless you have other "12(6)" guns, when you get rid of that one, you won't be able to have any others. I really don't know the value, but since the gun is "prohibited", it will probably be worth a bit less than a "restricted" gun because there is a much smaller number of qualified buyers. Any sale price will depend to a large degree on condition. Enjoy the site.