I'll be stuck at the office Tues/Wed. Bummer. Wish I could make it out, though!
The HWY 7 corridor out of HS is wonderful. There are tons of unpaved forest service roads which will parallel it north towards Russellville. The Albert Pike area is arguably some of the best the Ouachitas have to offer, but it's pretty far west. Mt/ Magazine is probably worth the jaunt, though. (Highest point in the state is an easy 5 minute hike off road.)
As far as the Ozarks go, and considering you only have two days, I'd transect the Buffalo National River watershed, west to east. The Boxley Valley is priceless. If you camp at Lost Valley you're bound to wake to the sound of bugling elk. (The elk are visible almost daily in the valleys along HWY 43.) From there, you can connect countless paved/unpaved roads for 200-ish miles eastbound.
Highly recommended: drive the Compton-to-Erbie road, hiking in the Ponca Wilderness, local art in Jasper, farmsteads of the Richland Creek Valley, the ghost town of Rush, and Blanchard Springs caverns. You'll end in the Mountain View area where the Sylamore Creek meets the White river. Mt. View has the
Ozark Folk Center, which is kind of a cheesy touristy museum/village thing, but does offer a great glimpse into the history and culture of the "hillbilly" lifestyle.
If you can time happy hour on your way back through central Ark, come by Conway and have a cold one on me. I'd love to meet you guys and hear about your travels. Have fun, stay safe, and post up plenty of pics!! (Weather will be great this week.

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Hope this helps.
Wes