Michael,
I lived in the Ozarks a lot and they don't have mountains like we have here, but there are some great Cobra driving roads going into the back areas and some pretty steep climbs in places. My cousin that lives just about 80 miles South of Springfield on the Arkansas side of the line has my old Cobra as I sold it to him. What date are you supposed to be in Springfield? I could call him and he might drive up and see all the cars and go with you for a short ways. In fact if you are coming North from Little Rock on highway 65, he could meet you there as you will pass about 3 miles from his house. He lives in a small town called Omaha which is about 20 miles North of Harrison.
Ron