Beater pointed out another challenge and you are likely to encounter others. But stopping is going to be a serious consideration if your loaded to the upper end of the target weight. Also, in many states, 16,000 lbs is the maximum GCVW(gross combined vehicle weight) that a dually(one ton)truck can legally operate with in public roads. So a half ton style truck trying to tow that much can get you a hefty ticket from the DOT...
