Goodness.  Please don't ruin a bayonet just to fit this Krag.  The bayonet will be around longer than you and will be sold after you tire of it or after your demise to some dude who will buy it from a picture on the 'net and find out it does not fit his rifle. At any rate the gun and bayonet will become seperated in the future.

Send the gun to the CMP and have a new one spun on to it and do a wood restoration.  Or you can have the muzzle turned down since it is already buggered.  You can get a replacement forearm piece and splice it in if the stock has been cut back.

Just my opinion but I try to live by the hippotomus oath when it comes to Krags or any mil rifle for that matter.  Doctor do no harm.