With all those appliances you might do with a 6 AH Sealed Lead Acid or Gell Cell in the BOB and a small power port device that would supply the required voltage / amp for each device through a set of anderson power-poles for the devices that have utility while stationary like the radios, DVD player - etc. That is what I do to power my Emergency comms rig. The SLA / Gel Cell battery is a bit heavy but I can get by with one battery, one charger (for the SLA Gel Cell) and one power panel and everycomponent, radio, amp, swrm, antenna tuner, Desk lamp will run on it. Heck I can even plug in my espresso machine for 1 brew but that just about kills the battery. (It was fun including that requirement in the power panel). This provides a decent couple of days of radio operations. I can't wait till I can exchange the SLA GelCell with an alcohol based fuel-cell! That will be a revolution in my carried electronics!