I just looked at it on a map as I didn't know where Thurso is, and I'm sure it's a beautiful place to live, but I wonder how big the pool of buyers is in a town like that? How long do properties usually take to sell around there, and has yours been on for a long time in comparison?
I agree that it needs a floor plan 100%, and I would take a photo of the outside space, even if it's not that beautiful just so that people can see what is there.
I don't know how the price reflects the fact that it doesn't have central heating as well, that would put me off viewing somewhere.