Not hard to do a "kitchen table slick up" to a 97. Just requires a complete take-down so you can inspect all the pieces for tooling marks and a couple sheets of fine emory cloth and a bit of elbow grease. The guide rails cut into the bolt & action frame usually require the most attention, but some of the other areas might take a few strokes with the cloth to remove a rough spot. The inside bolt slide rails are the hardest to get done and you wont get them as perfect as the bolt itself but every little bit helps, I wrap a dowel or broom handle with emory (loosely, so it kind of folds inside the rail tracks) and just slide in and out for a bit. you don't have to completely remove all the mill tooling marks, just smooth the tops of the ridges so that they don't "bite" into the opposing pieces that slide when you work the action.
Buying some snap caps for practice is a good thing but it's debatable weather you will "wear out" before the action "wears in" if that is your goal with them...
As for the springs in a 97, the only one that needs attention is the main spring (deep down inside the bolt) and if you "hour glass" it to reduce hammer back-stroke, always have a spare available as they are the most susceptible to stress fracture afterwards that I have seen. Wolf Springs used to sell a reduced power spring for the 97 but its been a long while since I ordered any so don't know if still available.
Good luck with the Norc., they aren't an "original" but they are a very usable second.
