In that area of the ramp where you'll be putting in, have had success with tube jigs (natural colors like craw and shiner) with 1/8oz tube jigheads, as well as white flukes, and pop-r/buzzbaits.
As you leave the ramp, immediately to your right, you'll see a long line of rip-rap. At the end of the rip-rap, there is a large run-off/spill dam. Just passed that are some large chunk rock (just beneath the water but you can see them) which normally holds some fish.
A couple miles south of the ramp on Tellico; there is Tellico Village on the right. Lots of boatdocks there also good for tubes/flukes/spinnerbaits. Have not found many big bass in this area but have had good numbers.
Good luck with the tourney. Hope you'll post your results/experience with us here (maybe some pics too).