Thanks, Tinker. A good idea. I'm just waiting on the Permit to Acquire to arrive, and then I can pick it up from the local dealer. Slugging the barrel will be my first job, along with Rigbymauser's suggestion. Thanks, Rigbymauser.
Thanks also to you, fallingblock. Do you have any other information, or know where I can find out more about London Guns? A quick google showed no results;I will ask Graeme Wright next time I see him, but it may be a while.