My mother's boyfriend has an m1 carbine that he says they got off the shelf from Kmart 10 or 15 years ago. I've shot it and love the way it shoots. I would like to have one for home defense. Does anyone know if such a thing is available or if the price would even be worth it? I've seen originals on gunbroker and such and they go anywhere from $1000 up to $6000.