I bought a log home and needs to be restained. I also have some logs that have rotten in the front under the front stairs. Some other logs sound hollow and I dont know if they need to be replaced because they look good. My questions are, what type of stain from sherwin williams would you reccomend, whats the average cost of replacing a log, and would a hollow sounding log need to be replaced if it looks ok or is there something else i can do to it.