Midreshet Rachayl is a good idea as well. I was also thinking of that. I haven’t been involved with the school in years so I can’t tell you who goes there now. I think they used to have girls from approximately 19 or 20 and up, but I don’t know how many, or if they do now.
I’m surprised they described themselves as modern orthodox. Were they talking about the students or the staff? I wouldn’t have called the school modern orthodox, but I guess that depends how you define your terms. The hashkafa of the school/staff is in-betweenish. Seriously Frum, but somewhat of a range of hashkafos.