He called the school the rude-amentary elementary because all they wanted to let him learn was rudimentary skills
That is what I heard when I read your post.
Second and third graders here are with the same kids all day long, for all subjects, so the switching between classes would be an everyday conspicuousness.
One of my accelerations was in a rural district. I started in a pullout to another grade and when I fit in, they moved me after the break. I fit in better with the older kids. You may want to "rock soup" your way into the situation.
It will be hard to find a secular HS group near Tulsa...
BUT... There used to be a very strong HS group with PG kids associated with the professors at ORU. I know a woman who was HS and who graduated from Oral Roberts (ORU) when she was 19 having started college at age 15. She was very flexible intellectually as were her friends from the HS group.
I think you just have to find the right HS group with a mix of PG kids. The faculty association might be able to help you here.
