Hullo Nigel, Postage to and from UK is pretty horrendous, but might be worthwhile! Tig welding on new boilers in Australia must be done by a certified welder and is strictly supervised. I don’t know what the UK equivalent would be. The Boiler I have looks as though it has never been fired, but someone has removed the two longitudinal stays, one of which I think was hollow. In the process they damaged the smokebox tubeplate rather badly and the tubeplate is copper welded to the barrel. My email is jone@ispdr.net.au if you would like to contact me or we can continue the discussion on the forum.