For some people hunting at the LBL wouldnt be as enjoyable as FISHING the LBL
I did a search and found this listing of about 25 diffrent places to rent Fishing boats and even some guide services for the bigger charter boats.
Lake Barkley & Kentucky Lake Boat Rentals
http://www.kentuckylake.com/boating/rentals.shtml
They have everything from house boats to paddle boats. this is just one site listing rental places there are others as well.