You can buy my CX-20 if you like, I don't use it I fitted a full APM instead of the cut down standard version, it has a GLB gimbal already fitted too as well as wiring for telemetry (which I used to test waypoint flights) External USB port so you can plug in and change stuff It's pretty much fully sorted, you can't really get an aircraft that can do more £250 delivered, all I've ever used it for is setting it up and testing it, though I did break and repair one of the legs on it's first ever flight as the monkeys that built it didn't even stick the flight controller down inside