I'll be passing through Lexington soon and just checked the database. Most of the Fayette County public safety stuff is full-time encrypted. Shown as "DE" or "TE" No radio, scanner or pager will hear the clear transmissions (some might let you hear the digital noise)
Lexington-Fayette Urban County Government (P25) Trunking System Profile
www.radioreference.com
UK operations are mostly in the clear. There are some part time encrypted talk groups. Shown as "Te".
You should look around in the database for the areas you want to listen to and see if they're encrypted. The other variable for choosing equipment to scan trunked systems is simulcast. Simulcast systems can cause most scanners problems that limit what you hear. That info compared to your listening interests will guide your next hardware purchase.
The easiest, most consumer ready way to receive p25 simulcast systems is the relatively expensive SDS series from uniden*. That said $100 or less worth of rtl-sdr dongles, cables and antenna will receive the signals but you'll pay in setup time and they're not conveniently portable.
*Unication Pagers receive p25 simulcast very well but might leave you disappointed as a general listening tool. They are not scanners. You will need to program what you want to hear before hand. They are also only capable of receiving comparatively narrow range of frequencies.