Node Pathfinding

Hi!

I'm trying to achieve the effect shown below:

• I understand I won't be able to use Unity's NavMesh System because objects will be animated.

• UsTwo briefly explain how they achieved it here but I'm no closer to finding a solution.

• I need to quickly transition the player to a different part of the object. This can be achieved by ordering nodes in depth order from the game camera (orthographic) and then going through them in depth order and deciding which ones should occlude the ones that are in front or behind.

• I've also found these plugins on the asset store:

https://www.assetstore.unity3d.com/en/#!/content/14075

https://www.assetstore.unity3d.com/en/#!/content/27837

https://www.assetstore.unity3d.com/en/#!/content/31459

I can't work out if they can be used for this example?

Any help would be HUGELY appreciated!