Wait what two? does this include me?
Also, I'm a bit confuzzled as to whats going to happen here. Since we clearly are splitting up, how do we assure the right people end up at the right temple and at the same convenient time that they are fighting?
Well I'm more hoping that those who wanted a certain guardian might say "Hey why don't I get my character to get that spear?!" and blah blah blah. It shouldn't be too hard, but your characters now know the locations of the certain temples and you all signed up for a specific guardian/summon/thing. If you don't remember, its in my sig and the guardian's locations are explained there as well. I wrote it all for a reason.
Just direct your character to the temple, and for those who already have a G, just go where ever you want or help others. imagination isn't really needed all that much for this to be figured out...