1. You'll need a short action stock.
2. You'll need the proper 3-screw bottom metal inletting, or the adapter that allows for 3-screw bottom metal to be used in a 2-screw insetted stock.
3. If you have/buy a WSM, you'll need a sporter taper barrel channel, NOT a featherweight barrel channel. You can still get the featherweight stock pattern, just not the featherweight barrel channel or you'll need to open up the barrel channel to accept the WSM's sporter weight barrel.