Holmes Bend is on the Adair county side. This link should help.

http://www.holmesbendresort.com/location.html

The others I mentioned are in Taylor county not too far out of campbellsville. There is a ramp at the state park, it should be listed as lone valley.

As I mentioned all are good and you shouldn't have any trouble at any of them, I would pick the one closest to where you are staying. Green River Marina has seems to have mostly pleasure boats so the ramp is fairly empty early in the morning. Ramp 1/site 1 is mostly a fisherman stamp and most tourneys go out of there.