Kasich just doesn't have the manpower to find enough delegates (sad, but true). You have to be able to figure out, more or less, whether a delegate is likely to support you even when no longer bound to do so. Even Cruz, with his highly praised ground game, isn't there yet according to your count (which I trust but have not checked). There is no excuse for Trump not to have filed at least close to a full slate of delegates in NJ; that's practically his home territory, and he has to have enough supporters that he could have identified.
Not to mention that Christie joined Trump's team and it IS his home territory. If Trump can't get two or more more to sign up by tomorrow he'll be assured of losing NJ to the anti-Trumps before a vote is cast, due to his own incompetence.