I have a 2017 coachmen leprechaun 260ds and am towing a 2016 ford edge.
1. Do you have the base 4 cyl engine in your edge. If so you may not be able to flat tow anf will probably need a trailer or dolly. In 2016, the optional 6 cyl or larger 4 cyl only can be flat towed.
I am towing with a blue ox alpha bar, blue ox base plate, blue ox car guard 2 rock guard, and blue ox patriot 2 brake assist. The installer put in a remote battery shut off (switch inside the car) and an always on 12v socket for the patriot in the left side dash compartment.
The edge weighs about 4,500 lbs and the e450 has a 7,500 tow capacity.
I have been very happy with the complete set up.
2017 Coachmen Leprechaun 260DS with levelers, 15K BTU A/C with heat, recliners, double door refrigerator. Home base Alexandria, VA