^Mitch.....and the wheelbarrow legs (the rear axle in your example) now have 0 weight on-them because your wdh (arms) put the weight more on the front axle and trailer.
My only issue with using the SRT Durango is the fancy self leveling and adjustable damping is not made to, imo, manage a heavy trailer with a large duty cycle and that stuff is expensive.
Aside from wear n tear on that, any reasonable sub 1000lb tongue weight with a wdh will work great. And the rest of the vehicle is more capable than a 2500 Hemi (engine, trans and brakes)