Traditionally, people would discover Country music at about age 35 so there would be little marketability for a classic version of it outside of the South. That has changed so it should now be a viable option.The audience would be well outside any agency desired demographic.
Back in the 90's I was involved with a 'classic country' startup in Spokane, WA. Classic top 100 artists only. In spite of the assumption that it would be popular, over the first three months it crashed into a smoking hole in the ground. Come to think of it, I believe that was the quickest format pivot I'd ever witnessed.