My personal preference for a short box would be a B&W gooseneck hitch coupled to a Colibert slider hitch. It's going to be expensive but worth every penny.
I have been towing for about 8 years without a slider on our shortbox. It is a pain in the butt, but it can be done. Just have to watch those cab corners on 90* back in spots.
The Pullright superglide is the unit you want. I have heard great things about them as well. Like I said before, if you feel the need to jack knife your truck to park into tight places you definitely want the slider.
1999 Ford Superduty F250 PSD CC SB 6spd 4x4.
B&W goosneck/companion hitch, Airlift 5000 airbags.
2006 Sierra F28 Rear Kitchen 5th Wheel, 31' = 10k pounds.
Nights camped in 09-14, 2010-23