I have an old log house, the interion has stain on the but they are dull and dusty looking….no life to them. I would like to clean and then apply a product that give them a low luster sheen. What should be used? Is linseed oil ever recommended vs a stain? I don’t want to add any color just the bit of a glosssy finish. Any recommendations on cleaning beside a shop vac with a bruch attachment? Thanks