As for the poll, It doesn't work currently. We have problems with polls that are not on the portal page.
I would pick the second option, though this would be an ambitious hack. What you could do is use the current game and make scenes where kefka is playable. This way you could show the Empire point of view without changing completely the game. You could make flashbacks too if you want to incorporated some elements of his past or even make more scene involving kefka, but with the main cast point of view.
Such a project would be on a smaller scale and you could experiment with events and such without having a massive hack in mind.
I would pick the second option, though this would be an ambitious hack. What you could do is use the current game and make scenes where kefka is playable. This way you could show the Empire point of view without changing completely the game. You could make flashbacks too if you want to incorporated some elements of his past or even make more scene involving kefka, but with the main cast point of view.
Such a project would be on a smaller scale and you could experiment with events and such without having a massive hack in mind.