I figured it out. Apparently you only count amounts over $150k for rounds 11-20 towards the bonus pool. So we have more money than I thought. If the Sasaki $260k rumor is true, we have $1,374,705 left before we have to forfeit a pick.
If Kozeal signs at slot, we would have $595,005 to throw at Lawson (if Sherman is willing to pay the Luxury Tax penalty on the 5% overage). If Sherman wants to remain cheap, we could offer Kozeal $776,600 and Lawson $150k. These 2 negotiations will probably go to the wire. I'm sure we eventually sign Kozeal. Not so sure about Lawson. I'm sure UNC is putting together a package for him.