I find the big sockets like these its easier to carefully pry the plastic frame off then desolder each pin one at a time.
I'm not sure "a few still available at digikey" is a good way to describe it, makes it sound like they only have a few left and when they are gone they are gone which isn't the case. These are still a standard stocked part, if there were only a few left there would have been a notification of its discontinuance.
I still need to get time to work on mine some more, seems the battery damaged more than just the socket.