Hello !
Making screens is easy.
Go to an art store and buy canvas chassis the dimension you want (they come unmounted in a lot of varied dimensions, in very strong wood with smooth profile. And of course without canvas on them...
Then go to the hardware store and look for fiberglass mosquito net ad to the cart stainless steel tackles and the device to punch them and you're done.
Mine are years old, darn cheap, easy to clean because dirt and contaminants can't go into the fiberglass which does not drink water so dry quite instantly.
Hope this helps