Shipping containers are amazingly versatile and very tough They are often customised into workshops.
The standard shipping size is 40′ long or 20′ long. They don’t need a lot of ste preparation or extensive foundations, just make sure that they are well supported at their ends on firm ground. There’s lots of videos on Youtube on how to do this.
I want one 🙂
THis clip shows just one concept of a 40′ and a 20# container joined together with a roofed “yard” rea to one side.