Forum:Change Wreav into Wrex (not imported game)

I just landed on Tuchanka and found out that Wreav is in charge. But I want Wrex, the problem is I'm playing an unimported playthrough. I've tried to change Wreav into Wrex by using the Gibbed Savegame Editor but no luck so far. Does anyone have a solution? Wrex is Badass and I want him back! (without having to play the whole again to this point)