undeRGRond that is a great idea, hid them in the back of a closet and build a wall that you can open up and the safe is behind. Also can hind a gun in a baseboard of a wall, make it were you can open the baseboard up. If you have a room with two closets you may find a way to hide the safe there and close the closet with a wall that you can open.
There are many ideas. Since you are an electrician you have been around construction sites and see the way they are built. There are many areas to hide a gun and some ammo.