I can't be real specific for a start out of DFW but... I would suggest making your way to Talahina, OK, take Hwy 1 - The Talimena Scenic Drive due east over to Mena, AR. There is a place to eat in Wilhelmina State Park at the Visitors Center I believe about halfway to Mena which was decent. From Mena head toward Hot Springs, AR. Can't recall the best route to get to Hot Springs. You want to catch Hwy 7 due north which is a great cruising road all the way into Harrison.
There are other great roads but that should make for some nice cruising.
Hopefully some of the locals will chime in as it has been a while since I've been on those great roads.
http://www.motorcycleroads.com/75/26/Arkansas/Arkansas-At-Its-Best---Highway-7.htmlHere's a coupla sources as well.
http://www.harrisonarkansas.org/c_upe_view.php?id=34http://www.arkansas.com/outdoors/motorcycling/hot-spots/