I just feel like safe's are huge indicators for thief's. Kinda screams "something expensive is in me!" Do you plan on getting insurance on the items inside (can you get insurance on a piece of paper with value, I am sure you can...)
And
Why not just get a safety deposit box at a bank? $20 bucks a year and it's protected by a door safe. (I guess they aren't water proof and that would be bad if you couldn't get insurance.)
But good looking box!

RavinTavin