Yeah, Remington's wood is shaky to say the least and all of their checkering is now pressed instead of cut. Sad for sure.
I'd suggest searching Numrich, Gun Broker, etc for an older stock. Any model pistol grip stock should fit. Matching the forearm is another matter. You could go with custom stocks from the likes of Macon, Treebone Carvings, etc. but you'll need wood working skills/tools or send it to some one.