Connecting beagle bone black to atrix multimedia dock (Not Lapdock)?

I have an atrix multimedia dock (not the lapdock) that come with a wireless mouse and keyboard (link). I just want to be able to power the beagle bone from the dock and use the wireless keyboard and mouse. I Do Not want the HDMI fro beagle bone black going through the dock. If i make a usb cable similar to the one shown for raspberry pi here ( One end for powering the beagle bone and one for data connection to the dock to get access to the wireless mouse and keyboard while connecting the HDMI from the beagle bone black directly to the TV. Will this setup work ?

Any help/suggestions will be greatly appreciated.