I also looked at the three fivers that you list and I have a 2011 F250 CC diesel longbed RWD and I know that they, when loaded up and ready to go, will be to heavy, the pin weight will be your first problem but there will be other issues regarding weight. I opted for a lighter fiver, a 2012 V-Cross 275 which has a listed dry pin weight of 1,193 lbs, hookedup and ready to go it has a pin weight of just over 2,000 lbs. Those three listed will have pin weights of around 3,000 lbs and you will be over the 10,000 lbs limit for the truck. Good Luck