Let me emphasize something Nasty already said: TAPE the blade up well. 2 or 3 layers over the cutting edge is not too much. Tape is cheap, surgery is not. A power tool can snatch a piece out of your hand before you know what happened. Even working with hand tools, a sharp edge has a way of being where you didn't expect it while distracted. Don't ask me how I know this, or why I'm so adamant about it.
You can do a lot with a few small files, some sandpaper and 4/0 steel wool to finish up the polish. Not a real shiny finish, but as they say, tactical - or is it tactile?
Good luck on the project, and keep in mind that it's always possible to put another handle on, if this one turns into what we sometimes call, "a learning experience" around the cantina.