Tractor supply sells wheels of barbed wire. Once I get another shed built, I plan to set a few wheels aside in it. Also, a chainsaw and a few wedges will enable you to drop trees to block vehicular access.
My concern is that the house itself isn’t very secure – first floor windows will need plywood covers, patio door is a problem, door frames themselves are just standard framing.
Another consideration is what if someone wants your home, remember to consider window covering so that no one can snipe you when you walk around the bedroom.
