I don't have an Outlaw but looked at them very carefully. The sofas are pretty easy to remove, they're just bolted in. If you remove the sofas put carriage bolts in the holes to plug them up.
If you have room for 4 golf cart batteries that is the way to go, you'll have a lot more juice for a much longer time, important if you plan to do any dry camping. The golf cart batteryare designed for repeated charge and discharge cycles, as long as you keep water levels up and don't discharge to deeply they will last a long time.
__________________
|