That’s excellent scenario.
I looked that delegate count and you’re analysis is pretty good.
I figure that all he has to do is win any of the following states (winner take all):
Nebraska, South Dakota, Montana.
If Trump wins any one of the above, it’s over he wins.
He’s also leading in Indiana which is 50ish and have to assume he’d do well in NJ given NY, PA, CT results which is also 50ish.