I am looking for some help/advice on what would be a good price on several S&W handguns? They have been in storage for the past 15+ years and before that they had been unfired!! There is a variety of models in both blue/nickel and barrel lengths. I got to inspect them yesterday and they are clean..BUT..the guns are all missing the grips?? A family member has them and they might be returned, this is an estate issues. Do I go by the book and/or current internet value, how much is deducted for the missing grips/boxes/tools etc?? Any help is greatly appreciated..