I've got my thinking cap on and will consider the options and it may even be simpler to make a new longer scabbard body from scratch rather than join 2 together. All I would need to do is to produce a former of the correct shape out of steel or hardwood first. When I get started I'll see about taking a few pictures but it may have to be with a film camera unless I learn how to use my digital camera which I haven't so far. We do have Tig welders at work but if I was to take a gun or weapon part into work all hell would be let loose- literally.