Daniel Ball upgraded from a $72,000 Leader Gold LE caravan to a $125,000 Supreme Classic Tourer. He installed a custom Redarc power system with 840 watts of roof solar and a 620-amp lithium battery, enabling off-grid use of a split-system air conditioner and other appliances without a generator. After running a heater for five and a half hours, cooking, and charging devices, the battery still had 91% charge the next morning.