New road to Spring Grove/ Hyde park to County line is a fun loop but then it's Parker's ferry back to 17. Not really worth the distraction, IMHO, if the goal is Estill. I'd head straight there, since that area is really cool and worth the extra time a direct route would afford you. Too bad I can join y'all I'd love to explore there some more.
On my recent trip to Ridge Motorsport I noticed plenty of inviting dirt roads. The next chance I get to hi the dirt, I'm heading that direction. Theres got to be a way to loop most of the State on dirt!