I'm not sure I'm seeing the whole situation here. You say that the roof of the front shell is collapsing - but you can push it up by hand - but there is no delamination?
Seems to me that if there is no delamination, you would be lifting the air conditioner by hand, and the air conditioner is heavy. Not an easy lift. And if it is reasonably easy to lift by hand, then you are not lifting the air conditioner, which means there is delamination - the outside of the roof has pulled away from the inside of the roof. Help me out here.
Take a look at the outside of the roof. Has it sagged as well? Is the air conditioner still sitting square and well sealed against the outside of the roof?
It appears that the structure in the rear edge of the front shell has failed, and the roof (including the air conditioner) has sagged to the point where it is crushing the rear shell. But we will know more whe you answer some of the questions in this and other posts.
Was the air conditioner installed by the factory, or as an aftermarket upgrade?
Good luck.
Bill
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