do you have the table posts? that would be a consideration on how to construct. Basically a box sitting on two posts with two storage areas and two leaves attached with piano hinge. I found that taking off the starboard leaf worked ok.
Consider the fact that on some auto racing circuits, the racers prefer to use lexan instead of glass for windshields. While I already have one scratch in one new Polycarbonate [lexan] window, done by impact with jaw of spin pole, all it is is a scrat
not included ... probably an expensive option not available via ebay. we don't use for navigation, just for wind shifts as they are easier to read than GPS and GPS averaging.