New to Travel Trailers - Nissan Pathfinder V6 TV

My opinion, get a different TV.
With the wheel base of the Pathfinder, you want to stay under 20' total length.
I have a 2011 V8 Pathfinder, 7,000 lb TC, with factory tow package. Almost the same drivetrain as the Armada. It was specifically purchased to tow a Lance 1685, with a GVW of 5,400, and a total length of just under 20'. This was as much trailer that I felt comfortable towing with our Pathfinder.