I did this job last January. Cut a groove in the bearing race and snap it with a drift. Not a big problem if you can handle a mechanics hammer. However I bought a press to get the assembly apart and back together. Maybe doable without a press but I would not want to try.

I never thought about change the hub carrier. It is very sturdy and I can't think of any good reason to swap unless damaged.

Good luck.

__________________
2003 4.4i black ext./black int./black headliner (kid's runabout)
2014 535d X-drive, M package, silver/black interior

Sold but not forgotten:
2009 E70 35d, black ext./black int./black headliner (sold 2021)
2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly...

Other hardware:
2015 Cayenne S (wife's new DD and definitely wroooommmmm)
2016 Tundra 1794 edition crew cab, luxo hauler
2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles.