Need advice on toy hauler swaying on freeway

I would cancel the F-150 and look at the F-250 or 2500 models. Yes, you can upgrade the tires (and wheels), add suspension enhancements (like Timbrens or Supersprings), buy the best anti-sway hitch available, even change the trailer suspension, but it will not be the same. Ford makes a 3/4 3/4 ton HD model which would be better, but why not go with a full 3/4 ton model? I have had three 1/2 ton and three 3/4 ton tow vehicles in the last ten years, so I have been there done that. I enjoyed driving the lighter models, until I hitched up to go somewhere.