I need a pretty big one , needs to lift at least 500 grams, for my blimp project, preferrably a store in the overijssel province if there is one?

I have started working on a blimp-based uav using two motor-propeller units from an old XUFO toy i had lying aroung;i have mounted these onto servo axises so i can rotate them, i am using smartphone linked via IR to a PICmicro as controller,my prototype works when mounted on a rig that simulates the baloon, this worked well,but before i buy more parts i need to know if this is a good meathod of building a uav,also i'd like to replace the phone with a camera + radio,what wouls be best for this :…See More