That's cool. Where are you headed? I've ridden mostly the western U.P.. You may already know about this website, but
www.johndee.com does a nice job of reporting on snow conditions. I'm assuming you've read the owners manual regarding not towing for the first 500 miles and then towing at 50 mph for the first 500 miles.
Let me know how the Titan pulls and if your transmission gauge goes past the half-way point pulling the trailer. I'm guessing you have a single axle 12 ft but may have a double axle 14 ft.