I just edited my above post with an idea for showing the birth, but not showing it, if you get me.
Agreed, Bingo. The Skywalker name and Anakin/Vader are the biggest issues.
On an unrelated note, I've just uploaded this video demonstrating how Jango/Boba (whatever he'd be in your own edits) could survive the prequel era.
Personally, I don't think I'm going to have him in the Arena at all, as it makes it obvious to both the viewer and the Jedi that both warring factions are connected. But here's the video anyway: