This structure served its purpose well.
I wanted to remove all the plastic because it needs replacement for next spring, and my job was not tight enough the first time around. Some moisture got in- mold on some of the wood parts, and green algae on some of the plastic. Especially on the door. Which got bent on the way back down the stairs. So I will probably have to rebuild the door for next time. And paint the shelf supports. And I want to redo the roof too. It needs some work; for now it is resting in the basement.