PSK and Double Fouls

[James Neil]

Originally posted by Smiley
4th and 10 for Team K from K's 35. At the snap, K2 is illegally in motion. K1 kicks the ball to R1, who returns the ball 10 yards and is downed. During the kick and after the ball is clearly beyond the expanded neutral zone, R2 illegally holds K3 at R's 45. Ruling?

I believe R is going to be given the opportunity of declining K’s foul and having theirs enforced under PSK guidelines. If R chooses to do this I need to know where the kick ended to give the final spot. R 1/10 @? , Clock on the snap.