I am looking to purchase a original cleaning rod (not a reproduction) for the K98 I recently purchased. The rifle is currently all matching, but I realize that it is unlikely that I will find a cleaning rod with matching numbers. My K98 was manufactured by Sauer & Sohn in 1940. My question is what length cleaning rod should I be looking for ? I understand that there are two different lengths of rods available. One is 10 1/2 inches long and the other is 12 inches long. Which one would be correct for my rifle. Thanks, Lee Hoffman