You're pretty much resigned to a few small lakes, in the Northern portion of the state - Besides Bullock Pen & Kincaid ... there's Boltz & Williamstown lakes (off I75 at Dry Ridge) - Corinth Lake, Elmer Davis, and a few other small waters around La Grange. Chances are, though, that being so small - they're not going to produce much in the way of size.
Have you tried Guist Creek (East of Shelbyville) ...... Taylorsville (South of Shelbyville & East of Louisville) - I don't know about Guist Creek, but Taylorsville has some decent Crappie.
Or, over to the East of Lexington .... there's Cave Run, Grayson, Yatesville, & Paintsville lakes. I can only vouch for Cave Run - I've never fished the others.
Have you tried fishing the KY River ? Or any of the larger creeks coming off of the Ohio River ? .............. luck2ya ........cp