Some question/concern is raised concerning bearing removal and replacement if the questions start with removal of the swingarm pivot bolt.
Not dinging on you here...but if the mechanical attachment of the swingarm is the start of the questions, you may well be better off having a shop do the work.
As inferred, once the nut is off, getting the pivot bolt out may well be a big headache.
If, having loosened the nut a good amount, a light-to-medium tap with a heavy hammer (you can use a piece of wood between..don't bang directly on the nut. It's inertia/mass that's doing the work) doesn't move the bolt, you're likely in for a solvent-soaking, heating, pounding effort.
Also as inferred, in some cases the bolt is stuck so bad you have no choice but to cut the swingarm out. ...obviously cutting the bolt that's holding the swingarm, not cutting the swingarm itself! :think:
There is room for a blade inbetween the swingarm-frame.