One month is not enough time to do this trip. We did ours and it took 3 months. We stayed about 3 days at most places
Nashville is nice not sure about Knoxville. Memphis is ok. We stayed in west Memphis when we went. It was just across the river. Was told not to stay in Memphis itself. Not as nice area. Bass Pro has a cool place there. I missed it but I will get there. Elvis is there so take the tour of his house. Its a must see. the rest is just ok not much. but the house is very nice.
we stayed here
https://www.goodsam.com/campgrounds-...26list%3Dfalse
It was right on the river. I had a spot in the shade because it was hot. They do have spots on the river if you can get one. Laundry was free when I went.
When in Oklahoma city go visit the Street Outlaws. See Farmtruck and Azn Get some 405 stuff If you are into that stuff. Nice city though.
Albuquerque New Mexico is cool. They have a tram that goes up to Sandia Peak very nice up there.
I plan where to stay and wife plans things to do. Then we sit and figure how long to stay. I make reservations about a month in advance for holidays and then you kind of get locked into a itinerary. I get all the RV park information and put it in a book so I can call on the road and dont have to look them up . Planing is everything. I used over 1,000 gallons of fuel on my last trip just so you know. and averaged 11 MPG