You may or may not have seen my post concerning the midpoint between Uke and Tori, yet to let you all know -.1 is the most equal point between them.
I made a base object spawn, where it starts off exactly in the middle of the Toris. Just put this in your scripts folder, and when you start worldbuilder, Press L and type in base.tbm, and duplicate the objects from there as needed.

thanks a lot!