mine is not the cool barn setup. original link is.
top pic, not the most glamorous setup, cabinets need a bench top.
machinery is mostly robland with various additional lathes, drill press, jointer etc.
floor isn't really setup for metal shop.
below pic is almost dug out for that section. to the right is already complete but needs a matt.
only one 12x12 section to go.
i put in a few 220 (30-50 amp depending on machinery, welder), a few 110 (20 amp), all new conduit, a grounded load center with dedicated shut-off.
cow section of barn is other half containing squeeze, tie outs, more electricity etc.
need to put sliding door on.
yeah, sorta hokie. cobwebs optional.