I think I've mentioned Zannoti Armor before. At one point I thought I'd never move again but life happened and I've moved 3 times. http://www.zanottiarmor.com/
A modular safe is great. It is easy to move and install. You don't have to hire strangers and your neighbors don't even need to know you have a gunsafe.
Steve
Cost?
You sir, are a specialist in the art of discovering a welcoming outcome of a particular situation....not a mechanic.