I would advise you to check in Gun List, Gun Broker, etc. for stocks. They can be readily available at times. The floorplate hardware, magazine follower and spring are also available from sources in these publications, as well. Gun dealers and gunsmiths in your area are also a good source of help. This is a basic "drop-in" procedure with factory wood, however a good metal-to-wood going over is probably needed.
Do it.