The auction pictures are really small, but I think you did very well. I thought maybe there was a weld at the cut-off, but zooming in makes me think there was just a big goober of cosmo. Is there any markings on the cut-off lever? Look at the side. Any punch mark between the F's on "off"? Does the safety lever have any markings and are the letters on both sides serifed? is there a weep hole in it? Stock looks factory fresh. Any markings on the sling/stacking bands? I can't see the butt-plate. More detailed pics would help.

Might be original as issued. If so, you did really well. More informed experts may prove me wrong.