I think keefers idea sounds best to me.
When I serviced my swing arm bearings and needle rollers etc the other day, I had to remove the swing arm to get to um. ( Of course)
Thing was I was dropping the engine out of my bike anyhow. I just locked the bike down in a black and decker workmate and when ready, simply lifted the frame off of the engine, removing the swing arm at the same time.
Took two of us to lift it up mind.
As Keefer has stated, if ya can do it the way he described, then all well and good. But you are only a few steps away from dropping the whole engine out.
All I can say is that my swing arm spindle was ok and just tapped out.
All nicely cleaned and greased up on re assembly.
DC.