Krugerrand
Crowing
How crazy of an idea would it be to take off that giant door on the close end of the metal shed ... then add a wall further inside that is largely open on the top? That would allow a section of the shed to be a 'covered porch,' if you will. And, it would allow the rest of it a means to get some better ventilation. One moderate window towards the top on the other side would allow air to move across the top and out.