[Al Skierkiewicz]

Dana,
Alan (above) is correct, short, custom, ribbon cables can significantly lighten the load. You may also not need all connections within a 37 pin cable and that would allow a further reduction in the weight. Just by shedding the bulky connector housing and hardware, I would guess you could loose several ounces. Packing all the bulk of the control system (fully decked out) into the robot is going to be a challenge as well. The RF rules for the wireless port will be similar for past radios. Mount the unit so that it is not buried down inside the frame where it's output is shielded by metal components and handle all cabling with care. i.e. no sharp bends, pinch points, etc. and secure the case and all wiring to the robot frame.