I agree, I don't think a space that is difficult to access is the best location for students with disabilities. This would be an interesting topic to address with the school regardless of the competition.
This is a great overview. I am able to get a good sense of the school, its focuses, and strengths and weaknesses. You also had an excellent assessment of the design problem and solution so that I get a clear sense of the obstacles the school faces and how you intent to solve these problems.
It is all very well written. Great job!