Need an Expert in Aeronautical Engineering and Catia

Design fuselage of a regional jet taking reference dimensions of Embraer 175 -All external features included All internal features including 83 seats. 70 economy,6 business class just with more leg room and 6 seats for crew members. -design a cargo area and overhead lockers -design cockpit -Provide a step by step video such that someone can reproduce the same fuselage following the video.