Hi, can anyone recommend a company that does seat modifications to an Autotrail Chieftain? My friend has 2 straight bench type seats running opposite in his lounge but wants to change one of them to a "return" type set up so he can take seatbelted passengers. Autotrail say they don't offer that type of service! Seems a bit strange cos they made the exact same model with the "return" type seats. Hey ho.