Is there supposed to be any noticeable play of the outer CV joint (I guess technically it's called the drive shaft) within the steering knuckle after the manual hub/ADD flange is removed? I know there are bushings on both sides of the steering knuckle, but how tight is this fit supposed to be?

 

There will be some play, even with new bushings. I replaced the bushings in mine and the side to side play didn't change much. When the flange/hub is replaced most of the play is eliminated.
There's a spec in the FSM for end play, it should be less than 1 mm between the outer bushing and the spacer just inside of the clip, when the axle is pulled outwards with a force of 10 kg.
One sign that the bushings need replacing is a clunking/groaning noise while turning at low speeds.

 

Thanks for the reply. So it seems like there is supposed to be some side-to-side play, while the FSM has a spec for the end play.