Customers will ask for various configurations aimed to meet their specific requirements for applications such as but not limited to: Passenger transport including VIP's; Law Enforcement, e. g. Police Work; Air Medical Service (Medivac); Search & Rescue; Utility e. g. News Gathering, Cargo transport, Offshore operation to name a few and since the aircraft customization field is considered very specific, means customer and mission oriented, and as a result the manhours needed for the installation/integration of optional equipment will span over a wide range, it doesn't make at this point of time any sense to try to determine the manhour requirements for each of all the various possible configurations.