Ease of Reese installation?

I wouldn't tow a trailer with that much tongue weight without WD for any distance. Most dealers do not know how to set up WD, and if they do they do not want one of their techs tied up on it when they could be generating revenue on the next job. They will probably crank it up tight enough to level the truck, call it good, and send you out the door. I just don't trust dealers to set them up. Take a tape measure and check his work. If the hitched height of the front fender is not where the truck's manual says it should be, get them to do it over until it's right. You will certainly want the anti-sway portion installed, but you can get safely home without it, just maintain a reasonable speed and slow down if it begins to sway. If they don't adjust the WD correctly, that's easy to fix, but i would not let them install the dual-cam, it's just too instruction intensive and the measurements are critical and vary hard to correct if installed incorrectly.
Keep in mind, you'll need to readjust the WD after you get the trailer loaded and if you add any addition items like helper springs or air bags.