We have an older lady here in town. She has a very small house on a dead end street.
A little redneck has a bedroom in the house set up as her shop and does nothing but rebuild old alternators.
We have a similar one man transmission shop nearby. Trans comes in at left side of door, circles 3 approx' 30 feet walls of workbench l_l, and ready to go when it gets to right side of door.
he does have hoist and monorail overhead for the heavy lifting but makes a good living without a lift or doing the R&R.