CraigGe wrote:
Cargo is more realistically < 800 lbs, but I would like to plan for 1000 lbs in case I want to load the quad in the bed instead of the dogs. Either way, I hate to worry about a couple of hundred pounds every time I load.
Frankly, you have to because you have a half ton. Payload is your limit. The specs you listed look like base model/max, not as equipped like actual owners have.
Check the actual payload on the Tire and Loading sticker on the driver's door or door jam. Even at 1500 pounds of payload, 800 pounds of people and cargo, leaves 700 (loaded) tongue weight for the trailer. That's about 5000 pound dry TT.
Skip the quad as it costs you about 3000 pounds in actual towing capacity. Stick to under 6k dry and 700 pounds dry TW. Get a WDH with integrated sway control and you should be pleased.