You are just some guy. I will continue to take advice about my daughter from educated professions, thanks.
Nothing wrong with that, id still like to see the professionals test her for cochlear dead regions using the PTC and/or TEN test. Id also like the professionals to explain why they haven't tried different HAs as well as offering more amplification. If more amplification didn't help, that's one thing. But not to even try and see if it works is another thing.
According to you?!!
An ear hearing at 80db in most frequencies that has no cochlear dead zones is equivalent to CI. If a HA can't help, a CI probably won't be any better. It's like someone who sees 20/200 with the best glasses, no refractive surgery(lasik/prk/intacs/iols) is going to help.
Did you pick 1000 hz out of a hat? Why did you decide it started there?
This is just my estimate. Youll need to have a professional test her for this. The dead zone could start at 500Hz, 750Hz, 1500Hz or so. Then she would be missing all the higher frequencies and some of the mids and it would explain a 20% speech score. More gains could get her score to 50%, still bad by your standards but could be useful for bimodeling(one CI, one HA)