looks pretty good. are you going to overlap the checker plate on the frame and put some sort of seal under there or haven't you decided yet? i'd say 1.6mm would be ok, that should hold up fairly well without being too heavy. i think people are making bash plates out of 5mm alloy but that needs to be a lot tougher than a canopy cover. are you going to checker plate the front where that mesh is too?
as for the hinges i guess it depends what you want to use. you could probably use those medium duty gate hinges, like these
just one on each end
good idear thanks for that il look into making them.