I have a small log house the floor is very uneven inside the house, and rodents are getting in via areas on the perimeter. It is built on a frost wall that was not ventilated and is not deep enough (12 inches and it should be 36). I am a single woman and this is my first home and I have been told to do two very different things to remedy this issue. The first school of thought is to gut the house, interior walls and pour gravel, then concrete inside the home creating a slab, then place interior flooring on the top of this. The second school of thought is to jack the home, build and ventilate the frost wall, level the home this way. The "concrete" fans, say I will have a lot of cracking, splitting of the logs - so I am totally confused on who is right. Can you help?