It is a real task, first there are dozens of allen head(hex) screws, then there are even more smaller hex screws. My biggest question is where to find the small hex driver to remove all of the screws on the prop arms. Any help would be appreciated... have tried auto parts stores, Lowes and Walmart, Lowes had a kit with the smallest being 1/16th in. it is too small, the next larger is too big. This should not be that hard!