Ken, I was not familiar with Reed v Van Hoven, and do not know if the ACLU was representing anyone in that case. Perhaps you do.
However, I stand by my statement that I would not support the blanket banning of a pre-meal prayer by an individual. The problem, as I see it, is the "aloud" part. First of all, is the prayer violating a school quiet time or disruptive? If so, limits are ok, IMO. I do have to wonder why it is an issue. God hears silent prayers, so why the need for public spectacle, which btw Jesus expressly forbid. Those who make a public show of prayer have received their blessing, but God knows the heart of those who pray silently. At least that is what the Savior taught, if you take his teachings seriously.