I got rid of my old Mormon cult books a long time ago. I still have one called KINGDOM OF THE CULTS by a "Dr." Walter Martin. He also had a segment on some other cults he didn't particularly like, including JWs.
The idea of starting a new religion with it is interesting. Maybe if I told him I woke up in the middle of the night hearing a voice, and I followed it, and it was coming from the red book. "It really creeped me out, so if you want it, come get it!" It's got pretty cool art in it. I reckon they don't put any value on books like that.
I'm putting most of my books on my new Kindle HDX. Nice devices, but a bit of a rip-off.