Kan't weee, wee ,we Just all get along. Stolen quote from a worthless sack of Sht -
I was in the same boat - Should of bought a F250 instead of a 2014 First Gen.
I installed Deaver +2 springs and SVC Adjustable bump stops. The Bump stops help to box the rear frame. Rides better than stock un-loaded and I can adjust the bump stops to help pick up the load when loaded if nessessary. i also had 3" Fox shocks and Eibach springs installed in the front.
After this every Ton, **** and Harry, I hadn't talked to for who knows how long, wanted me to help them move something or take a load to the dump. I ended up putting a shell on it. When I go out camping, I have easily about 650+ LBS of tools & gear in the back with 2 - 230+ and 1 -190 LBs men in the cab. Sometimes a lot more weight if we go for target practice.
If I were you, I would go with Deaver 3" springs and SVC Bump stops - Not too much of an investment compared to the return in capacity. I still might have a leaf or two added to my +2 Deavers.