The best ones I've seen are not (originally) gun safes. They are old gov.'t safes offered at auction. They are much higher quality than anything available today and can often be bought for $400-$800. Some are truly huge, all are high quality. The interiors usually have to be made to suit. A buddy of mine just got one 6' tall by 5' wide and 4' deep. It is fireproof, on wheels, weighs a ton+, and he paid $350!!!! I offered him much more, and he, of course, laughed.