While you can get the exact tow capacity by giving your VIN to a Ford dealer, I suspect the rating will be in the order of 1500 pounds. That eliminates most fiberglass trailers (and all Escape trailers) other than some teardrops. While a 13' Scamp has a dry weight of 1200 - 1500 pounds, by the time you put anything in it, you will be over the capacity of your tow vehicle.