Need Parts/Replacement Insect Screen

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Hi Gang
I have a 2015 Forest River Salem Hemisphere 282RK. Regarding the large "picture window", the insect screen that is part of this window is in sad need of repair/replacement..tabs missing, parts broken. If I can't repair/replace I'm just going to remove it and not open the window. At least it won't look as bad. Any idea where I might find parts or a replacement? Also as an aside I'm replacing the shade. I have had a terrible time finding a cordless shade that has the color I want on both sides. Seems all the online dealers make their shades now with one side color and the exterior side white to comply with HOA requirements..go figure.