Planning a shop build, any suggestions?

Times have changed. I also have worked on my cars during the same time frame, except the 50's. Now - a - days, I don't believe anyone would rebuild a motor or transmission, store a $40,000 or more project car or any other items of value in a pole barn. Not saying you can't, but not a bright idea. I can drive 120 mph on bald tires, but not smart.
Idk what they do where you’re from, but around here, majority of shops and barns and even some houses are built using pole building construction.