I have an update. Got lovely emails back from the Principal and Psychologist. No response from teacher. The Psychologist's was very, very kind and gracious. She seemed genuinely sad that she had not been able to help. Both provided the contact for the district evals for private and parochial schools. Principal said she had spoken to her and that she was expecting my call. I expect I will call and begin the process again tomorrow.

I had a lovely conversation with my MIL who is a current public school teacher but who also homeschooled 2 of her 4 children at various points when that was warranted. She suspects I will "never regret making this change" for my son. Both my younger sister (no children yet) and my younger brother's wife are very committed to homeschooling in addition to a few local and many non-local friends. So here we go...