If the gun is real nice, I would keep it or sell it
and buy something like a Stevens 311 beater
or a Rossie coach gun, strong, but no class ,
something like a sks, whatever you do will
not make any more ugly.
Mind you it is you gun- so? ,if you cut it,
make sure there is solder on the rib at the cut,
What I do is clean inside of rib and barrels
and stuff some degreased steel wool in and
with a heavy soldering iron melt some soft
solder in there -I use 60/40 radio solder,
or you can stuff some J.B. weld in to fill the gap.
Do Not Use a torch thou .
A set of those ( I forget what the name is)
day glow? sites might be opion, magnets in them,
I have had a set on a Win 101 for 5 yrs and never
had it come off.