I've done this once, as seen in my Custom Rifles in Black & White book. The above info is correct, the tang screw hole is plugged with a stud, the tang heated and bent but the lever must be cut and welded. I have a stud, template for bending and other info but I don't give this stuff away anymore.
My book is available through my website and you can contact me if you are serious about utilizing my experience and parts.
The owner of the rifle is a member here and may wish to comment.
(I also have an EXTRA set-trigger adjustment screw, an impossible part to find!!)
Here's a photo.
