Good luck! US Servicemen brought back many, many k98's after the war, but most are bolt mismatches. This is due to how infantry soldiers rendered weapons "harmless" immediately after combat/capture.
In my case, I have a 660 code bnz 1940 that was a bolt mismatch. Unfortunately the stock was "sporterized" and a rubber buttpad installed. I acquired a correct type Norwegian capture stock, and it makes for a pretty nice rifle, in better shape than most Russian captures.
I recently found an all-matching J.P. Sauer c e 42 code in a local shop *with a matching bolt*! Tragically, the stock has been cut down and the barrel bands lost.
I hope to find another correct stock for it soon. A replacement stock will likely cost me what the rifle did!!
ETA: Intact Norwegian captured k98's are very rare (only a few imported) here in the US. It is my understanding that the Norwegian government destroyed most of them relatively recently.