I rode on a road like this. If I remember correctly, it was in SW Missouri. Almost felt like you could lift the front end going over a crest.
I used my Sony a6000 camera with full zoom. It isn't a very powerful zoom. Don't remember the number....but then I heavily cropped them so you could see the "hills". You can pretty much see over the hills while driving. I had to drive into town and ask some one at the gas station if I was on the right road. Yip... I was. Went back and took several photos. Drove down the road once trying to find "the hills"...
You want to only drive the far south part. The rest of 366 is not good pavement. A lot of it has had fine gravel spread over it since so much of the pavement had broken out. You may drive it "hunting" for the rollercoaster and completely miss it. It is not impressive. You won't get any "whooopeee" out of it at all. The picture is probably more thrilling than the road. When I asked the guy at the gas station if I had been on the right road, it sort of chuckled and said " yeah... that was it". I said something like thought I might have missed it..."nope, that's all it is "Thanks for looking. My wife said it still looked like fun. I may have to go there next year. If I do it will be part of an Arkansas trip.