The following are just suggestions to get you thinking 'outside the box' a little, but if you're going to Memphis to see Graceland and Sun Studios, why not continue eastward just a bit on US-78 to Tupelo and see the other shrine to Elvis' life. Then take a relaxing drive down one of the most beautiful roads in the U.S. to Natchez (for some antebellum plantations) or Vicksburg (for the Civil War Battlefield). Either route would let you return home by way of Shreveport, and you could drive it all if you put in 4 hours a day (but no more than 4 hours a day) each day of your trip.

AZBuck