Hi i recently moved into a house and couldn't get anything up the stairs due to a newel post and bannister rail. I had to literally saw the newel post and removed all the bannister rail and spindles. I'm now left with half a newel that will look akay once I can Level the top of it. I can't remove it as it's part of the stairs and a big job. Obviously sawing a vertical piece of wood meant it wasn't a straight cut. I want to put a newel cap on the top of the newel post. How can i level the top of the post???? I've tried planing and sanding, keep getting one side level etc, gonna end up with no post soon lol. Any ideas??