There's a guide, burn out the old ones and press what's left out and the poly bushes simply push in.
Don't undo anything else and you won't require an alignment.
If you're going to the trouble of replacing things whilst you're in there, then I would strongly recommend the ball joint, tie rods and shocks. Followed by an alignment.
But front/horizontal bushes can be done with just the wheel removed.
Just checked. The offside wishbone was replaced in November 22. I have a new nearside wishbone in stock in my shed!
My mechanic is happy to replace all with polybushes. At the same time, one of the tie rods was seized solid last time the tracking was done two weeks ago, so worth getting them done at the same time as you suggest.
Finally, they did say that the camber is out a bit, but that involves something with fitting new bolts (??). The have a proper Hunter alignment setup, so may as well get it all done at once.
So for January:
Fit new NSF wishbone
Fit polybushes to both sides
Fit new tie rods
Camber bolts??
Tracking