(Choosing an answer as a best answer, or at least as a thumbs up, helps those who answer questions.)
Although you would need some contractors to give you estimates on how much it would cost to fix, I can give you some more details - since I have been inside this home.
The first & second floors are almost move in ready. There is some sheet rock missing from an upstairs bedroom & in the dining room - possibly to repair damage from an electrical fire. There was too much water in the basement to get a good assessment of the damage down there. It came just above the first step. Because of this problem there is extensive mold on the stairway & I'm sure in the basement. There is no evidence of mold on the first or second floors.
If you would like to discuss this home more or need anything else feel free to contact me at 413-391-0159.