2001 Audi A6 Axle replacement

Took my wife's car in for service and was told the the CV boots are cracked and exposed and has caused damage to the CV joints. The service shop wants to replace both axels. I was told doing this would save labor hours. I am being quoted over 2k to have this done on my car. This seems very high to me, what do you think?

Alos, can this be done by any service shop, or does it need to be a place that works on Audi vehicles?

Thanks