Days to assemble in China is not as long as you would think. Probably less than a month to build if I had to guess. Once you establish the first prototype other

Days to assemble in China is not as long as you would think. Probably less than a month to build if I had to guess. Once you establish the first prototype others don't take as long. Most of the time went into R&D. It really depends how far back you want to go with sourcing material components. You arent going to make your own steel beams from pigiron. Energy loss in transport can be calculated by the amount of containers needed overseas for building construction materials. I would guess about 3 or 4 , 45' or 53' high cube containers in raw materials. I could not find good estimates on volume of materials needed for this type of building right away. Carbon footprint is probably not as crazy as you would assume. Many parts are sourced overseas and end up in home depot etc. Adding logistics warehouse and labor to manage this adds significantly higher carbon footprint overall than just a one time shipment.