As for those rivers you named, at the right levels I would do tellico, Little, suicide section, upper duece, island, or chick in a 13 footer. Only rapid on suicide that wouldn't go is avalanche, all the others are raftable. Telli would be a hoot at anything over 2 feet, little needs 3.5 plus feet, island needs a foot and chick would be really fun at over 2 feet. Suicide would need to be about 8 inches min to go and cable would be a little scary. I think pinball in a raft at 8-10 inches would be sooooo much fun.