Guest Adder Patch and Events

The reason I'm asking about them being treated as character 14/15 in events is, I need to add Banon to the normal party select roster for the three party battlefield. The events for removing characters during that time, no problem they are all getting rewrote anyway. Just need to know if I add the item, then refer to character 0E will it effect Banon (the one I added with the guest adder) or the regular Banon. As far as the rest of the WoB events, that item will be removed afterwards so shouldn't cause any issues for the future events.

There is another way to do it, I think, just this one seems like more fun.