Do it! I have friends who've done the long route, and they had a lot of fun. It was brutal, but fun.
In years past, I've done the weeklong Bicycle Ride Across Tennessee. In fact, the last time I did it, I was more or less in your neck of the woods. I almost have DH talked into it for next year or the year after next. You should consider that if you can; it's a lot of fun. I love riding in Tennessee.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher