Buck is going to run away with the primary IMO so I see no reason to get worked up about him. Hill really shot himself in the foot with Kenya comments.
I truly believe we have the momentum to win in three races: Greg Brannon (NC), Paul Broun (GA), and Chris McDaniel (MS). On a purity scale, Brannon is probably a bit better than Rand (since Rand has to be careful if he wants to run in 2016) and Broun and McDaniel are probably somewhat better than Mike Lee.
Brannon and Broun need the most resources devoted to them. McDaniel close to Cochran in polling already and has the backing of everybody.
I feel if we keep pushing them and also try to see what we can do unseat Lindsey Graham (with Lee Bright preferably, Nancy Mace would be fine as well), then we will be in great shape.
I'm putting Stockman/Stovall (TX), Bevin (KY), and Wolf (KS) on a lower priority. Their races are in the hands of national conservative groups.