Rocky > It cost a lot of money and requires much effort to start your own school
It does not have to be a big building. R Kamenetsky and R Ruderman (as well as many others) would go the yard of a Rebbe teaching grade X and spent their learning day there. Just find 5-10 girls of similar age and have 1 teacher for them, possibly with some of the learnt parents chipping in some of their time. Plus use computers and tapes.