Hey weird,
How about a stereo/CD player/VCR box? IIRC an A3000 is about the same size as an audio component. Just wrap the A3000 in bubble wrap until those styrofoam side thingys fit nice and snug on the sides and then slide it into the box.
Pete
P.S. I have never done this but since audio companies ship their stuff in these boxes an A3000 should do alright.
