Doozie,
You have a pretty good idea of what you have there. You are correct in that it is a 22nd series made at the Kokura Arsenal. The bolt is matching. The rear stock inspection stamp you show (se) is the Kokura 2nd factory inspectors stamp.
You have a few missing parts from when it was issued but overall you have a nice rifle and it would be a very good shooter if you desire with the chrome lined bore.