I think you are doing the right thing by finding as much information as possible ahead of the time.
Going back to your original post Montessori classroom with 1:30 ratio doesn't seem to be a good option. I say if you are willing to pay for an extra teacher, it may be worth thinking about paying somebody to drive your daughter to/from the gt school, assuming you like the school, of course.
The commute sounds quite long but it's still doable. May be you could carpool once you get to know the other parents or like I said pay somebody to drive her a few times each week.
The PS sounds pretty flexible. It looks like at this point you have a few good options.
Good luck on Monday
