Looking at the numbers you are going to be close.
The Expedition is a fabulous vehicle. It’s limit for heavy towing is the payload capacity. The amount the truck can carry will be limited to 1,300-1,600 lbs. The receiver is also limited to about 1,000 lbs.
So, if you can manage your weights it will be manageable.
Just know that your towing experience may be very different. You will be going from a 3/4 Ton platform to a half ton platform. This means that Your springs will be a bit softer and your “P” rated tires a bit squishy compared to the “LT” rated tires on your Avy.
Thanks and Good Luck on your hunt for a new vehicle.
Jeremiah