I installed the ReadyMadeRC pan/tilt pod for the Skywalker this evening, and was delighted to find that it's also a perfect fit for ArduPilotMega. The autopilot and GPS fit very neatly right into the back of the pod, as shown above.
The whole thing is custom made for the foam Skywalker and fits like a glove, all secured with a little thumb screw in the front. And it keeps APM out in the open, so you can see the LEDs. Sweet!