I picked up a original Springfield 69 cal. 1842 musket, the barrel and lock are both marked 1842. The metal, bore and lock are in good condition. Lock works perfectly. The wood is pretty dry a few small dry cracks at the butt plate. What would be good to use on the wood to help the dryness ? I am not talking about refinish I want to keep it as original as possiable. I would appreciate any suggestions. hank You