Get it off the ground and cover it, as many have mentioned. If I needed it, I would not want the h***le of dealing with it cut into X number of pieces. I'd rather deal with the rust and rot. How many years has it lived outside? I bought a '40 Ford coupe that sat outside for god knows how many years in Wisconsin. I've stored the fenders outside for the past two winters without much thought. I'm four miles from the ocean. That rear section is 86 years old, I don't think another winter spent outside with decent protection would end it's usable life. Cutting it up would certainly do so, at least for most people. It should be said, good for you for trying to save it for the next guy! Too much of our hobby has been lost in the ether due to people not taking that into consideration.