Thread:NoWayThisUsernameIsAlreadyOwnedBySomeone/@comment-26208725-20150731102952/@comment-24335865-20150731114044

I would do it that way :

1st, on the existing page, eg: "Rod Flanders", the original name is showing somewhere in the page (without the template).

2nd, I'd delete the "Rod" page.

3rd, rename to the new "Rod" name beeing sure that the first 3 options are checked
 * Rename associated talk page
 * Leave a redirect behind
 * Rename subpages of talk page (up to 100)

But like I said, first let's NoWay give his thought about that before doing any change.