Planning a shop build, any suggestions?

Cuda Hunter, I don't understand, you say you build these elaborate garages, but you have a "Pole Barn". A pole barn is good for outside storage, like a boat or camper, but for a working room as a shop/ garage that should be squeaky clean, a pole barn is not the way to go.
.
Tell the thousands of farmers and contractors that use pole barns every day to do their maintenance and build things.
As for outside storage I consider a pole barn inside storage.
And believe me the thousands of us kids that were called "shade tree mechanics" from the 50s 60s and 70s would have loved to have had a pole barn to work on our cars in. I have never had a totally sterile environment to build engines or Transmissions it would be nice but it's not necessary.
Just my opinion which I highly value.