I am trying to design a portable coop for 50 hens for an orphanage I work with in Bolivia. Ideally it would be light enough to move by 1-2 kids around 10 years old, with a contained water system to fill not more than once daily (maybe 25L bucket with pvc and 6 nipples), and a feeder system that is fillable from the outside that had nearly 4meters of feeder space. I'd love suggestions and ideas! I plan to use 10 5-gallon buckets for nest boxes in a frame and 9m of perches in an enclosed end of the tractor (2mx3m). The remaining 4mx 3m area under shadecloth. I was thinking 3 feet tall (one roll of chicken wire) with a frame on top with shadecloth and on hinges to be able to get in. I guess the things I need help with are: feeders and wheel construction. Thanks for your advice and help! These kiddos will really benefit from the added protein in their diet as well as the opportunity to manage the hens and maybe sell some extra eggs. I'll try to scan my drawings for input!