My LX200 mount failed but not with the same problem – it would slew on one axis but not move at all on the other.
I, and a friend who does some mechanical telescope work, searched for someone to look at it to repair, but we could not find anyone to look at it.
In the end I had my friend de-fork it, and put a Losmandy doovetail on, so I could mount on a G11.
Callum