There is so much to say about proper shop layout. I purchased an existing business and building 10 years ago located in the Midwest and with 14 bays and 14 overhead doors you need a good door maintenance & repair company on call. Fewer doors mean fewer headaches.
Minimize flooor drains because they catch all the debris and must be cleaned regularly. I am concerned about an accidental oil or antifreeze spill in the shop making its way to the nearest floor drain.
Quick service bays should be located closest to the office because all the back and forth adds up to wasted steps. Locate incoming/outgoing parts shelves near a man door so vendors stay out of the way. I have an enclosed detatched shed placed out of the way to collect scrap tires and scrap metal.
Each bay needs its own air hose and light reel drop from the ceiling. Metal cabinets with doors as needed keep supplies clean and neat. Open shelves are dirty. Minimize work benches, they are a catch-all and dirty. A floor-level alignment rack is a great idea too, worth the investment.
Good luck and hope to hear from the other members.
Mark