With 6400 hours on it, it looks good, I can still see cross hatch marks in the cylinder wall.
Out of curiosity, I personally would pull off a couple rod caps and see what the bearing in the top half of the rod looked like as far as wear.
I'd also remove the oil pump pressure relief tube and clean it, probably remove the oil pump pickup and make sure the screen is clean in that too.
Since you're 75% of the way there.... might as well check it now.