The photo shows a 75% complete unit. Missing is the work bench that sits in the middle. Finding a workbench would be great, I'm in no hurry, but am putting out the word.
Now to the 75% I do have.... Left and right you have closets for 2 mechanics to hold their street clothes and misc stuff.
Center top is a pegboard that does what a pegboard does, with lighting hidden above. There is a 3 part garage door that rests in the upper section, and at the end of the day the garage door is pulled down to about waist level, securing all that is on the peg board.
From the pegboard to the floor is where the rolling work bench is stored. At close of the day, all closet doors are closed, work bench is pushed into center cavity, and the garage door thingie is pulled down and everything is secure. Basically it's a huge tool box... overkill... but then so were fins on cars
LOOKING for photos, examples, drawings of what the center bench looks like.