I assume it has the factory tow package? If so, it probably already has an extra cooler or two? A search shows it has a 7k+ lb rating from Lincoln with the AWD.
You have plenty of engine.
Will you be using a trailer with brakes?
The worst thing I can see about towing with that is the wheelbase is pretty short. It might get a little squirrelly at times.
I'd slap some load levelers on, use a trailer with brakes if at all possible, and go for it. BTW, I sat in a loaded Aviator and Navigator last week, and they do indeed have a surprisingly nice interior.