I've hiked the same loop the same way you plan to. The trailheads are well-marked and there are signs at both. There were a couple spots where we weren't sure which way to go, where the trail was not obvious or there was an intersection not on the map, but we figured it out and eventually found trail markers to confirm. If you know approximately where you are on the map, you can usually figure out which way the trail goes. A button compass is fine almost all the time in Arkansas. You can't do much triangulation anyway and the declination is close to 0.