I would contact Randall but I doubt they will be much help. My last Randall came with a embarrassingly crooked handle - they offered to clean up the blade and sharpen it for free but wouldn’t do anything about the admittedly crooked handle. They said they don’t replace handles.
I’m sure they would clean up the blade, but it’s pretty much impossible to fix the solder joint without rehandling the knife.
If it were mine, I would buy a proper sheath as suggested and resell it to a collector as is. Take the money and buy one that doesn’t need work if you want a user.
They will rehandle the knife and resolder the guard...what they won't do is change handle, ie leather to stag.
Speak to Dirty water on the Knifetalk forums, he works there.
