The Sportsman 58 is a
gas operated semi auto shotgun, and was Remington's first gas auto. The gas action was inside the magazine tube, hence the capacity is only 2 rounds in the magazine. It was the predecessor of both the 878 and the 1100. The 11-48/Sportsman 48 was Remington's streamlined long recoil action semi.
Keep watching eBay, and check here, they usually have some -
A Thousand Remington Gun Stocks; Bob's Gun Shop, Remington Original Factory Shotgunj Stocks, Originjal Remington Rifle Stocks, Original Factory Remingtdon 22 rifle Stocks, Remington Semi Finish Gun Stocks,Remington Oil Finish Gun Stocks. Remington La
You can probably repair and refinish your stock so it looks as good as new, or get someone to do that for you. World's cheaper than having a stock set made. The 58s are good shooting guns. If Remington hadn't come out with the 1100 when they did, I might be shooting a 58. Good luck.