Hi Munky- welcome to the forum- when you get a minute, stop by the intro thread and say hello.
A far as your model 80- may have some bad news. IIRC, the 80 and the 81 were made over a considerable span of years, and there is MORE than 1 bolt for the same model- call them new style/old style. They will not interchange.
You may have 2 rifles the same, and 2 different bolts, or 1 of each rifle, and 2 of the same bolts. Either way, only one would match. Take a look at this schematic from Numrich, and you can see the two bolts. Unfortunately they are sold out of bolts.
You are likely gonna need a trip to a gunsmith....