You can also check Big Lots for cheap tools jewelers screwdrivers sets and allen wrenches dirt cheap and nice large tool cases or plastic see through tubs with lids that may fit your heli. I got an Allen Wrench set at WalMart for 5 bucks...they sell cheaper ones but I chose the Blue case keys in mm sizes...smalled is for 3mm allens and its held up well. If you break an aluminum boom, also check out whether any of the Easton arrowshafts might work for you. I am using the Easton 2214 XX75's for replacement booms on my Falcon 3D. They are like 7 bucks for one arrowshaft and I cut it in half and have enough for 2 spare booms. Blue locktite is a must. Dont ever use the RED as the screws may not come out without heating them up and that may ruin whatever.
Ralph