I have a 5 year old log house in Maine that I am in the process of chinck filling with log builder. I am going to clean the house; on the sunny side of the house the stain is all but gone (I am sanding this side). My question is this: what type of stain should I use to match the log builder repaired log cracks, and is there any extra prep I need to do to that sunny side I have sanded? The house was stained previously with a semi-clear Behr product.