First do not deal with the hit after the ball is dead. But that in your back pocket and deal with the first action.
You have an invalid fair catch signal. That would be PSK enforcement. So you would have a 5 yard penalty from where the ball was possessed against R (unless half the distance is an issue).
Then you would apply the penalty for K with a dead ball personal foul. Fifthteen yards after you have applied the previous foul (unless you have half the distance issues).
One fouls is a live ball, the other is a dead ball foul. You apply them differently. First and 10 with R in possession of the ball (unless you have half the distance issues
)
Peace