Hi, we're looking at buying a steel '93 Shoop trailer w/ a dressing room...any guesses on how much it weighs? Measurements are 7 1/2 feet tall, 6 feet wide, 15 1/2 feet long. We'd be hauling it with a Toyota Tundra, and my horse weighs 1500 lbs, so I'm concerned we might be pushing the towing capacity. Any help is appreciated!