Back in the 80's I new a guy who had a room like this made when his house was built. Access was through a huge vault door that was 8ft tall and about 12ft wide, from the garage side it looked like anybody elses garage with shelving and hand tools hung on the wall. After knowing him for awhile he opened the thing up one day and I about crapped my pants. There were more guns in that room that I have ever seen in one place in my life, and all the ammo you ever would need. It was very well organized with a place for everything. He was a total survivalist, probably a bit overboard, but man would I love to own half the guns I saw that day!! It's only money, needless to say he didn't have a wife or kids!!
NCH