I just did this (in the opposite direction) with my 85D. It's definitely doable at the posted speed limit if the weather is OK. I arrived in Nashville with about 50 rated miles, after stopping for a bit (just to see how it worked) at a Nissan dealer in Dickson, TN and adding about 10 miles. Cruise control on 70 most of the way, and intermittent light rain. We charged overnight at a friend's house.
Came back with cruise control at 75 most of the way, which was working very well until we hit several miles of very heavy rain east of Jackson which eroded our range buffer. From Jackson to Memphis had to slow down to 60-65 but arrived with 35 miles of rated range.
There is a charger as noted in Jackson (we didn't stop) and a very friendly Nissan dealer (Victory Nissan) in dickson just off I-40.