Rotating Sprite and Colliders 180 around Y

Hi, I have a jointed figure (a multi jointed shadow puppet) made of sprites and wish to rotate the whole thing round Y 180 degrees at runtime.

How do I do that and take the colliders with it?
Is there a way to lose the colliders and recreate them once rotated?

I have 3D objects created with the UCLA mesh creator jointed with 3D physics. They rotate nicely but don't scale. The joint anchors go out of whack.
The 2D sprites hierarchies scale (joint anchors) nicely but don't rotate.
Any help would be welcomed!
Kind regards, Ian