Nothing standard will fit. The action is basically the Model 7 which is shorter than the short action Model 700 so the stocks for the 700 won't fit. There are no other versions of the Model 7 ever been offered with such a heavy barrel, so basically you're on your own. It's gonna take someone to make a custom stock if you don't like the one on it. But all is not necessarily lost.
Boyd makes them for Remington, so IF they wanted to they could make you one to your specifications. Will they? Dunno