what so you think it is worth

I just found a 1972 Dart Swinger w/ 6 cyl. by my house. I talked to the owner who said he inherited it from an ederly aunt who was the original owner, It has 30k original miles on it. The body is arrow straight. It appears to be 99% solid. The pass side 1/4 is starting to rust through at the bottom so it will need a patch. Other than that the floors look solid. ( I will have to crawl under it to confirm). It has the original 14" dof dish wheels/caps on it. it is Red with black bench seat interior. dash pad is cracked. Front seat is covered so I am assuming it is ripped. it currently doesn't run. What is it worth in running and not running condition. I know it is hard to imagine without pics.