I have a new - to me - .410 field grade. I'm generally fine with its current condition but do want to repair two issues: First, the grip cap is broken. Second, the stock has some recent dings/scratches that I want to "touch up." Suggestions on obtaining and replacing the grip cap and doing some home touch up on the stock - without causing damage, not harming the value, etc. Of, should I just leave the stock alone. Thanks very much.