You don't need drawings, just buy a fuselage, and there are four or five receivers, remote controllers, steering gears, brushless motors and electric motors, and the battery is almost the same. If you want to do it, you can find out how to do it yourself and try it several times. This is what I did for the first time. A KT trigger has dozens of fuselage, and the others add up to seven or eight hundred without buying too advanced ones, but it is not too easy to succeed. Think about it for yourself.