container frame modular prefab homes house southeast asia

our client in laos bought several W3M*L5.95M*H2.8M container frame,and several W5.95M*L5.95M*H2.8M

he bought all roof,wall,window,door,floor locally ,and make the prefabricated house by himselves

below is the pictures

want to know how to install container frame modular prefab homes house?check the video as follows