Hawk,
I certainly agree with your your points. Informing the Non-JW public is the way to go. Suing can be a little more challenging because there are ways around paying off debt by filing for bankruptcy. A few months ago the Hare Krishna's were sued for child abuse also and they lost. To avoid paying off the debt, they filed for bankruptcy.
I would like to add another way to make change. 3) Call and write to politicians to make changes in laws. Many states still don't require clergy to report child abuse to authorities.
Devon