We purchased a house at an auction sight unseen. After starting to renovate, we soon found what we actually had bought. It is approx. 200 year old log cabin. We have updated and renovated the entire downstairs. by ourselves and we would like to finish the upstairs. The problem is that we would like to keep the "trees/logs" from being covered up. The spacing is not exact and we would really like to put knotty pine barn siding there, just not sure the best way to go about doing it. The trees/logs are approx. 6"OD if that and mostly in good condition. Any ideas?