You have no room for machine tools, you say?

 We were visiting Battleship Cove at Fall River on the weekend and marvelling at the utilization of space in the submarine USS Lionfish. Everything they needed was crammed into every available corner including this good-sized metal lathe tucked in between the main generators and the curve of the hull shape. You'd have to be less than 5 feet tall with no legs to work the machine comfortably but when you need a lathe- you need a lathe!