I picked up this Winchester off of GB for a pretty good deal. I've been looking all over the web (much more than my prerequisite "Google" ) and I can't seem to find any solid info. regarding collect-ability, dates of manufacture, etc. I can't even locate it in my Gun Digest price guide??? I know it's an "economical" version of the 1300, but I read somewhere that there were only 5,000 of these made. Don't know if that's true or not. I was originally gonna saw the barrel down (to 18-1/2" of course) and install a pistol grip, but I'd hate to modify a firearm that could be desired by a collector. Anyone with experience with these?