Dear Desert Squatch,
Share a link to the listing. Nobody here is going to steal it away from you. More pictures that we can see bigger would provide more detail of what we're looking at. Looks like the logs might be on a full concrete basement and in a dry climate. If that's the case, it might be just fine the way it is. For sure get a detailed home inspection from someone that will go over the outside with a fine tooth comb.