I hope I don't get the numbers confused,-Shed idea 1 is ok because the drop you are showing in idea 2 will not do anything since at that point the air is still hot so the water is in vapor form and little if any will collect there.
Garage idea 1 is ok IF you bring the air in about 6" from the bottom with the take-off air near the top. Garage idea 2 is really good because by the time the air reaches that point it will have cooled and the vapor will have condensed and will be collected in the tank where it will drain, just be sure the tank is at the lowest point and the air coming in is about 6"-8" from the bottom and the outlet is at the top. If you combine garage ideas 1 and 2 (with the modifications mentioned) along with a standard water trap/regulator I think you will not have any water problems at all
Shed idea 1 or 2 combined with garage idea 3 would be a disaster