Looking for bit guidance on rear upper control arm ball joints.

Mot just been and been advised one has slight play. 

Been trying to find replacments but cant find ball joints or an entire control arm available.

Anyone able to tell me if the ball joints are removable from the arm itself? Im guessing they are pressed in and c clipped? If so where am i likely to be able to get some? 

Im sure they must be the same on another model but i just cant find anything anywhere.

 

 

 

Haven’t touched an outback before but import car parts (ICP) have always helped with anything I need for Imprezas.