Working out a Character Idea

[Sasuke Uchiha]

I have two questions here:

If I did a character similar to Kuzuru, two personalities/appearances in one, would it also be okay to have the separate personalities as NPC as well? I'm thinking of doing this with Disney's Moana where sometimes I'd be Moana, sometimes i'd be Maui, like Kuzuru does, but I'd like to summon an NPC of the other when I switch. (Provided I follow the proper guidelines for Prime/secondary NPCs)

Basically, when I am Moana, I summon Maui as a NPC and vice versa when I am Maui, I summon Moana as a NPC. Just like Kuz, I would also create separate movesets for each within my own OM pool.  


Also, how far away from yourself can you summon an assist? A few feet? As far as you have eyesight? As far as you have enhansed senses? Further with moves? Even further with supers? Tier 3 super = summon your assist in another verse? xD 

Okay, I'm getting crazy here, but I am curious.