im posting the following to give you a reference, but it really means nothing to your set up, but it may satisfy some curiosity you have about what you can do...
I have the superglide slider in my ram 3500 CC,LB and it works well.
I went with the slider because I have 60"long side rail boxes along my bed, and the slider helps to slide the pinbox rearward so the rear of it doesnt contact the aluminum side/storage boxes when in a tight twisting turn...
with the custom installation, the 5th wheel plate is exactly 1" higher than the bed rails to make it all work in this situation....
the squat, measured directly over the axle is 2.25" with the trailer fully loaded.
loaded hitch weight is 4400lbs
the overhang of the trailer is 68" from the ground, and clears my side rail boxes by 9"...
the max trailer heigth at the front (measured at skylight bubble over shower) is 13'2"...
I placed the axles over the springs to bring the rear of the trailer level.. and the A/C (highest point at the rear the trailer) measures 13' even....
without adjusting your hitch height, either at the pinbox, or by customizing your "standard" hitch install, you may need to adjust your axles to get it to level out.
2007 M-3705 SLC weekend warrior, 5th wheel
2014 Ram 3500 CC/LB, 6.7 Cummins
2004 Polaris Sportsman 700
2005 Polaris Sportsman 500 HO
1979 Bayliner 2556 FB Convertible Cruiser
Heavy Equipment Repair & Specialty Welding...