Sorry to hear about this trouble. I know this is not going to help you but perhaps it may help someone else.
Your story is one of the reasons why we bought a Transit AWD with factory windows.
We can sleep sideways without installing Flarespace, saving a lot of trouble and money. And we got one...
Question - I just installed a similar Eazy-Awn 270 awning on our lifted Transit AWD. It's really high up there! I am able to open it by going on the roofrack, but I need a solution to push up the bar in the middle from underneath. How do you maneuver that?