what are you going to do with it? its probably rotted through.
in the beginning I was startled about the undercarriage, that, and its kinda bad under the hood (i can post pics if anyone wants) but I don't really have to worry about the frame as much because its a unibody car. interior is gone, but it's still a 1970 Coronet, many of the parts from this car were year specific and lots of people are looking for the to restore their car, particularly the headlight bezels.
so I might restore it, sell it as is, might part it out, might scrap it. really don't want to scrap it though.