For inverse kinematics that can help you animate the overall body you should download this:
http://ik.duduf.com/
For cloth movement and all other you can precomp each element and ad inside the precomp a Mesh Warp. Once the main movement is done, you can open the main comp with each precomped element side by side and animate the Mesh Warp to accommodate the movement.
Tudor "Ted" Jelescu
Senior VFX Artist