My Dad told me that the house he grew up in was ordered from Sears. They had to build a foundation to set it on, but everything else was shipped to them from Sears and they assembled it. That was about 90 years ago.

I wonder if Amazon will start selling prefabricated houses?

Go to Amazon and pick out the features you want in your converted shipping container. Pour a slab to set it on. Free 2nd-day delivery with Prime.