Losingit, my heart goes out to you and I understand some of what you are going through. Take care of yourself first so that you are strong enough to endure this fight you may have. I can't stress enough what a good therapist can do for you to help you get through this. Continue to read everything you can get your hands on, it will help you see much clearer.
Don't make quick decisions because sometimes we don't think as clearly as we should when things first happen to us. We have all been deceived by the WTBS and have been very angry at what has happened. I felt like you did at first with wanting revenge but it doesn't accomplish a thing. I talk out my anger with my husband, therapist and family members. I too got into the religion because my husband was a born in and thank goodness we came out together last summer. You need to worry about you and your children. If you are sure you will not be getting back with your husband then you need to let it go and not worry about what he believes or what he is going to do. It is hard to give up the control but you will feel much better when you work on yourself.
Since you are both DF I highly doubt the WTBS will help your husband in any way in a custody case. If your husband has not threatened you with taking custody he may not even want custody and would be happy with visitation. I am not sure why you think getting reinstated will help you in the court of law with getting custody unless I misunderstood what you said. In most cases the mother ends up with the children unless there is neglect or drugs involved.
My son is grown and never came into the religion but I know for sure that if he had the choice he would have never stepped in a KH. He is so thankful we are out. If I knew back then what I know now I would have never continued to take him to the KH. If you know it is lies and they treated you with such cruelty I would never subject my child nor myself to their abuse again. I take it your family is not in the religion so you won't lose them and the "friends" in the religion are conditional which I am sure you realize since you have been DF. I don't understand why you want to be reinstated after realizing they lied to you and treated you with such abuse. I know some choose to do it because their parents and other relatives are in.
Hang in there and we are here for you. If you need to vent do it here so you can clear your head. It is a rough road but it does get better. You will start to see things more clearly the more you read. Try to get Steve Hassen's book so you understand the brainwashing and the dangers of this religion. <3