I sorta think taking Krav eliminates the need to take any other anti-rape training...after all, that's part of what you are learning anyway. I doubt you would see anything new. Many of these systems use a small weapon like a "Rape Kitty"..try getting that outa your purse while under attack. If you want to take some additional training, attend some BJJ or "Dirty Fighting" seminars. That is where your money is well spent.
"If you're gonna be stupid, you better be tough."