It is worth a premium to a private individual to not have the papers on it. Never buy from a dealer if you can buy it privately face to face.
If they come for the guns, they have to get into the safe. Since I will be dead on the front porch, they will have to take the whole thing. Not too worried about that.
I would say be very careful to follow the laws. They take firearm laws very seriously and any violation would most likely result in a loss of your second amendment rights for life.