The only place I know of that has fundraisers is Neve Yerushalayim. As I wrote earlier, my wife went there. They don’t require girls to pay if they can’t afford it. They have what they call a “moral obligation”. Basically, you pay whatever you can when you attend. After you leave, as you go through life, you send them a check when you can. If you have extra maaser money, or just make a decent living and can afford to send a check every month, you can send it then. If the day doesn’t come, they won’t press you for it.
By the way, Neve is one of the few places I know of that actually gives girls a firm foundation in Judaism. I’ve met some of the teachers there, and have asked some questions. R’ Kelemen in particular was able to answer pretty much anything I ever asked him. I thank my wife for introducing me to him!