Hey Bro,
I am really with you - but like the great advice from Ynott and others, take it slow - and nurture the relationship with your kids, what else will you have?
Your wife will have to come along after her eyes are opened- I am in the same boat, so to speak, I had to SLOW DOWN and it has worked in our marriage, i am taking my time.
The kids, get involved with the PTA, school projects - and road trips. Develope their critical thinking so when they get to be Middle Schoolers they can start analyzing this CULT for themselves, - they will come to the same answers you have sooner than you think.
Remember keep your friends close, and enemies CLOSER!
Love you buddy!
Good luck and you can do it