The link won't open for me, but...
I've had window screens for the cab of my 18-wheeler for over a decade.
Fits in the channel on the top and back, and over the glass. This leaves a large triangle section at the front.
There is a plastic panel that pivots and fills this gap and is always attached to the screen frame.
I can take pictures on Wed, or you could go in to any truck stop where they are sold.
Might give you ideas.
Here's a link:
Truck Window Screen #1 Full Size - Raney's Truck Parts
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