I was going to recommend Richard and Dennis Lacy as well. I think their main business is brake conversion, but I'm sure the can do a complete rear rebuild as well.
Yes.
It would be good info , for answering such questions, if your address/area was posted with your avatar. Los Angeles encompasses over 450 square miles. To me it makes a difference.
I also believe that you should call and talk with Richard Lacy, as that is one good suggestion.