Try gun shops, gun shows, estate sales, for sale ads, want ad, pawn shop.
Try Numrichgunparts.com
That is basically a Savage Model 94 as made for Sears. Stocks are widely available from internet sources.
I need a stock for a 16 gauge WP Wonder shotgun singleshot?
No
cowbourd
gunparts.com has them
The stocks are very difficult to find,Try your local gun smith
At Gunstocks Inc.
I have this model shotgun, but it has a broken firing pin. The gun is usless to me, but would make a good parts gun. The stock is in excellent condition.
e-Gunparts.com
stock is standard american walnut, no stain.
Sears mail order sold it. They were manufactured by Savage.