Ugh, the only legitimate "problem" on that whole list is that classes don't do math at the same time. That's a real issue, for sure, though still something that can be worked around. If your DD is very independent, could she do math on the computer at her level while the other do K math?

There is a glimmer of hope there at the end. I'll cross my fingers for her. It sounds a bit like presenting actual evidence might get you somewhere.