I guess what I meant is that you got that loader and front end off in pretty good time, at least for someone who has never done it before.
If you can't catch your fingernail on the crank journal, possibly you could clean it up with some crocus cloth and make it work. The next step might be to invite your machinist friend to come over and take a look. Maybe he could work some magic on it with the crank still in the tractor. It would be worth a try.