Thanks for all of the compliments.
The Grand National is all original with only 18K miles, so that bay is mainly for "parking". The silver GS is getting ready to go to the Fall Fort Worth GoodGuys autocross, so there has been some "work" going on in that bay. I am building a 65 Skylark track day/autocross car from the ground up, so that bay will have the most work in the next couple of years.
The building is stick framed from 2x6s, air conditioned, insulated with cellulose/spray foam, and matches the style of the house. My business is pre-engineered metal buildings, but that style of building would not work in my sub-division. No pole barns or poll barns here! I designed it on our CAD program, laying out the equipment, plugs, air drops, etc. I started designing at three bays, and my wife said I should go to four. Some times you just don't argue.