The commercial glazing contractor has built so many things....those guys can do miracles with the aluminum pieces for storefront and curtain wall systems...they have all the places to get the gaskets and the glazing, laminated safety glass, with or without tint etc etc.
We made a drawing of a frame that mounts to the backhoe roll cage with some c clamps so we can remove it and keep it safe....they showed us the material they had laying around...it was like a rectangle tube with a groove in one face... we were supposed to make a plywood pattern for the exact dimensions so they could copy it, but the 'worm turned' and we didnt get on with it...cant see why they could not do a screen with the invisible material on a nice heavy duty frame...