wheel carrier incl bearing ran about $800 2 years ago. I had an indy replace the bearing on car for about the same, which was a helluva lot less than the Wilmington,DE dealer wanted.
The most cost effective way for a DIYer is to remove the carrier and then bring it to a machine shop to get the bearing changed, but your car is OOS, and you do a lot of work yourself. Plus, your rear wheel may need an alignment afterwards.

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Prost!