Try nurmich arms
Try e-gunparts.com
Try e-gunparts.com
Try Numrich gun parts corp.go to there web sight and then look up the model you are interested in,they should have a exploded view of your Smith and wesson.
Try e-gunparts for the parts list. You can get a manual for free from S&W on their website.
There really is no way to know exactly when it was made. Smith and Wesson makes parts in batches and there is no guarantee that a frame made today will be built today. The closest you can come is a date showing when it shipped from the Smith and Wesson wareshouse. This particular serial number was shipped @ 1958.
Try on line auctions, gun shops, gun shows, pawn shops, estate sales, garage sales, sporting goods stores, egunparts, Shotgun News, etc..
Some are
Contact S&W
Numrich Gun parts Co. www.e-gunparts.com/ Search for Smith and Wesson 32
http://www.lsgmfg.com/gunparts.html Has Some parts and also makes some parts Also try http://www.e-gunparts.com/productschem.asp?chrMasterModel=1980z1000
The Mossberg 1000 super is manufactured by HOWA of Japan. It was also sold by Smith & Wesson as a Model 1000. Do a search under Smith & Wesson Model 1000 barrels. There is a guy in Texas who specializes in parts.
S&W, e-gunparts.com, Brownell's In addition to the above, Midway arms and the online auction websites Gunbroker.com and AuctionArms.com have S&W parts for sale. There are many other gun parts websites too, Goggle "Smith Wesson parts" and you'll find them.