WANTED!!! Accessories for the Omnibot 2000: Master Control Unit, Home Base, Charger, and Rechargeable Battery. Took my Omnibot 2000 out of storage to pass down to my son who is a robotics club in high school. I cannot locate the accessories, and the robot will not operate without the Master Control Unit. Please advise if you have any of these items for sale or if you know of anywhere I can purchase them. Thanks!