The real cost is in manufacturing and maintenance. What is the cost of replacing every machine, every factory, every load tolerance specified in every standard

The real cost is in manufacturing and maintenance. What is the cost of replacing every machine, every factory, every load tolerance specified in every standard? Every screw, every nut. Things that need to work, in place for decades, which we can't arbitrarily take down. Power plants, water filtration systems. How would you roll it out? It's because the US is so large and industrialized that makes it expensive.