CF would be great though durable, strong, light, and it doesn't interfere with WiFi and cell signals.
Are you sure? I know that carbon fiber and 2.4ghz radio signals can be a bad combination. RC aircraft flyers have to take precautions to make sure their radio signals don't get blocked by receivers in carbon fiber fuselages.
I don't know about WiFi or cellular signals. I'm sure it all has to do with what the frequency is and carbon fiber does absorb the signals from some radio frequencies.
brainwashed much?