http://www.westnebraska.com/2012/Missile-Silo-Home/
I toured it a few years ago and thought it was worth the 2.5 hour drive. The LDS family that owns it is very pleasant and more than willing to answer questions about the silo as their home and prepping. There was no religious overtones when I toured. I just wanted to put this out there is case a group from COAR might be interetsed in a tour.
Disclaimer: I have no affiliation with the Zwonitzer family or the LDS church.