Yea I have a few Arrington jerseys myself.
I was hoping Macintosh would where 56. But as far as I know nobodies taken it yet.
I was thinking about throwing my last name on a couple of them. But I might hold out a year and see if #56 gets picked up by a player I like.
But you should definitely change your Smoot & Bailey jerseys. If there authentic just use the seam cutter like I stated before. Start with the name plate undo the stitching all the way across the top and down one side. This will let you cut the stitches from behind the name. That way if you slip you wont mess up the jersey as easily. Just take your time and be patient. It takes about 45min so you might want to do it in a few 15 min sessions.
If it's a replica jersey you might just be able to flip the name plate over. Or if not have them screen the name directly on the jersey. The tailors usually can make name plates. But sometimes it hard to get them to match your jersey perfectly.