You know what I would do..post it on craigslist and see if you get a response. It is free and easy and they do have a "wanted" section. You could look on
..VRBOŽ is Vacation Rentals by OwnerŽ Vacation Homes Rentals by Owner but I think your chances of finding anything that big are very slim! You could perhaps contact a real estate agent that might be familiar with the area and see if he has an idea!