What would a "Pristine" NIB, 1946 vintage S&W(M&P)with a 6-inch barrel be worth, in your part of the Country? This gun is in the original gold box! The asking price is $550! Is this too much to pay? What would be your highest offer, for a gun like this? Is the 6-inch still desireable(Or, less desireable than the 4-inch?)? Were too many of these M&P's made, to make it not worth it to pay $550? This M&P looks as new as the day it was made by S&W and has the diamond grips!