E36 318is. Oh snap! Auto-adjust camber
 

http://i41.tinypic.com/1zbufzb.jpg

http://i44.tinypic.com/142ehrm.jpg
These are the images of the Rear Left (driver's side) control arm (A.K.A rear trailing arm) Bolt clearly snapped off.

Besides a new control arm what else needs replacing?
I have no idea what that rusty bushing is called nor how much one usually costs, I just know its a pain to remove.

And how much in parts am I looking at

Any help appreciated. Thanks.