Don't worry so much about future homeschooling. Enjoy what you are doing now. You can decide when you get to middle or highschool what you want to do. There could be multiple compromises to be made that don't require you to teach higher level classes - such as outsourcing all classes online/co-ops or private school and are more rigorous than typical public school academics. I would show him the data that pushing early formal academics does nothing to benefit the future education. If a student learns to read at age 4 or age 7, they will typically even out by the end of elementary school. Many countries don't start formal academics until age 7 and they turn out fine, if not better. I wouldn't be very happy with my spouse micromanaging how I should do something.

Would you be willing to give the master bedroom to the youngest 4? Then the 3 oldest boys in room 3, 2 older girls in room 2, you in room 1. It often makes more sense for the adults to take a smaller room since there is less furniture / stuff / need for more space and it's big enough for more kids to share. If that wouldn't work, I'd probably switch the 3 oldest boys and 3 youngest girls, give the oldest girl the den back and try to find somewhere else for the sewing machine either your bedroom or the den.

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Instead of accelerating the courses, doing them concurrently would probably be better. That way there is not such a rush to get through it and more time to truly learn the material. With that being said, I would really consider whether it was a good idea for her to graduate early and why you are considering it. Another option could be dual enrollment instead so that she can still be considered a freshmen the following year.

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