Just a poll, would many of you relocate an entire family 1000+ miles for something like this? New jobs, selling the house, new school for the younger child, pets...
I personally wouldn't. Our house would be difficult to sell (long story). The set of grandparents who live with us would not want to move; nor does the other of their kids want to take them. The other set of grandparents owns their own house ~10 miles from us, and wouldn't move either. My professional license isn't old enough to get reciprocal licensing in any other state. My partner's job is in an industry that doesn't exist in most states (but I suspect she'd be very employable if we moved). No siblings or pets.
I would consider boarding school, or home school, or living with her aunt and uncle, or homeschooling, or renting (and one of us living in) an apartment in another district, or private school, or a gap year.