I just picked up an 870 Ex 20G Youth from Wally World for the "rolled back" price of $238. To my pleasure, the stock is nice and dark walnut, not blonde like most of the ones I see on display. It appears to be stained but not finished with anything else. I was thinking of finishing it with tung oil for looks and for some added protection. Is this advisable? Will it go well in the chekered area? Thanks for any advice.