You could do a lot worse than an M1 for a SHTF gun, but then again you could do better, for not much if any more money. In today's market, in which you can put together a real solid AR for a little over $600, a $500 CMP Garand doesn't make as much sense for a 2A purpose rifle. I still think the CMP rifle is one of the best deals going, and anyone who doesn't buy one now will be kicking themselves later when they are all gone... but if you have limited funds and want something suitable for defending liberty, I would get an AR first. Setting up an M1 for SHTF does make a fun thought experiment, though. I'd say throw an Ultimak scout mount on it and co-witness a red dot with the irons. Also maybe a Schuster adjustable gas plug so you could safely shoot any commercial ammo.