Get some sandpaper in various grades, a wood rasp, a bottle of true oil, finish remover.and stain if you have a hardwood stock. take it slow and if you have any eye at all for symmetry you shouldn,t have any problem at all. You dont have to automatically think you are going to trash a stock that you do, just take your time and have fun learning.Plus there should be plenty of info on the net concerning stock refinishing.For the first one I would not recomend using any power tool as it might be too easy to let it get away from you and remove too much wood or in the wrong place.