Game Style AI system/Tools - for azabug only !

Game style NPC AI system and nav mesh set-up tools for a Machinima project using C# in Unity3D. See attached document for details. NDA will be required for further information exchange. Given I would provide a fully commented C# FPS template for Unity3D that includes simple NPC AI, how long do you think it would take you to get up to speed with Unity3D so you are truly productive and able to have the new AI system functioning in the provided template? N.B. You would only need the indie version of the Unity engine to do this AI work and all the docs and tutorials for Unity are freely viewable/downloadble from the Unity website to evaluate without needing to purchase a license. Don't Bid Outrageous ! Thanks