Hey Whig,
I have 2 Krags and only had 2 bolts for a long time and I managed to mix them up. I figured them out and got them correctly matched before I did the sporter build.  You are certainly braver than I am to pull that many at once, either that are you are superbly organized. The markings are probably unique for each bolt, I suppose if each one was ID before removing them I could keep that many straight.
Be careful.