I think you can pretty much forget about asking for a specific instructor.
At school like that? Not going to happen.
Whichever instructor is available is the one you will get.
And remember, not everybody is the same, Instructors are people also.
You may get along great with one instructor and you manage to get the best out of each other and the next student can't work with him/her
Instructors also don't stay around forever so the chances of somebody still being there are slim.
Dont look for "good schools", but rather for good instructors.
Fairly useless advise for somebody who cannot go and visit every school.
Good schools have good instructors, that is what makes them a good school.
A good school schould not keep bad instructors.