$325 is a bit dear, but it's fair if you and the seller agree to it. There is no set price for firearms. If you want it, given the heritage, go for it. I'd buy it at that price if I wanted it. You can spend the next 5 years chasing down the $75 that you thought you could save by passing up a deal today.
Don't forget, the pristine, matching number stuff goes off the market quickly and appreciates in value. Snag 'em while it's in front of you.