You have been given good advice here. Our situation was different from yours. I was Df'd unjustly and planned my exit so I could record my JC for my loved ones and help others going through a JC. But your situation is very different, you know TTATT and you both want to leave.
I can understand that due to the fact it is a cult, there is something that pulls us in. Once we recognise this we can release the bonds and break free.
Let us know how you get on. Take care
Kate xx