Design my house extensions

I am building and kitchen extension on the back of my property as well as a games room and gym. All these will be made out of shipping containers of various sizes I will need both 2D and 3D drawings made up as well as engineering drawings as some of the containers will be stacked ontop of each other. I have attached some photos to give you an idea of what the final designs will need to look like. [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] The first container will run across the back of the house allowing me to knock the back wall of the house out and open the kitchen up and extend it out. I want everything very open plan. I will have a bi folding door that will take up a large area of the whole back of the kitchen so it open up onto the back yard. Then there will be 4 container running down the length of the back yard starting from where the kitchen container ends. These containers will however be sunk down so that they are underground and the top of them will be at ground level. I will also need an access point door and stairway to enter these media room area. The last two containers will be at the rear of the property and will line up with the end of the media room these will be the gym. Roughly the containers will be 2.3mx2.6mx6m length However depending on the design we may have to go with some different sized containers they come in a range of sizes. The most important aspect to take into account is space and ceiling height the ceilings must be as high at least 4m would be preferred. As the 4 containers that are sunk into the backyard will be holding the weight of the other 2 containers that are the gym structure strength is important but as we are not altering these containers much I dont see much of a problem as they are designed to have other containers stacked on them.