The WDH will probably help how it handles, I've swapped my rear shocks out for Monroe heavy duty/hauling shocks for the Ranger, which keeps the handling very normal even when under load. It's never the tongue weight that gets me, its the gross weight.
I just checked out the Coachmen website for your trailer- and I have a few anectodal thoughts.
It's a pop up, which isn't going to have much wind resistance. That's nice.
The GVWR is 3500lbs, but the unloaded weight is 2700lbs. The GVWR is 3500lbs because it probably has a 3500lb axle on it. You don't want to put 800lbs of cargo in that baby and haul it around! When you are traveling, you can have a few hundred lbs of cargo in the trailer. If you load it all the way to GVWR, it's going to handle awful, and worse- your axle will be toast in a few years. The Ranger won't have a problem pulling a 3000lb trailer with cargo in the bed of the truck.
I've been hauling a fiberglass egg trailer around that is about 2400-2500lbs when loaded plus cargo in the bed of my truck. With trailer brakes but without a WDH, it's been just fine- and the Ranger has hauled it around Colorado in the Rocky Mtns.
Thank you, for being smart enough to use trailer brakes.