Cardinal Beverages in Elizabethtown KY was producing Nesbitt's orange in 12oz cans (maybe also 20oz PET) for Greensburg Bottling. They also made Nesbitt's strawberry and lemonade. Greensburg Bottling closed early last year, and Cardinal was bought by Cott about the same time.
CB Foods in Edmonton KY and Houchens Market in Greensburg both had Nesbitt's last March (2004.)
I don't know if it is still being produced or distributed in that area of KY. You might try contacting Cott Beverages (www.cott.com.)
90 years of Cheer...1917-2007