Originally posted by Bingowings:
"...short of replacing Jengo with Maul Grievous during the Kamino fight which would be a massive undertaking where would he fit?"
That's exactly why I said I doubt that anyone would be able to pull this off in an effective and seamless manner. The PT is so convoluted that it would be a massive undertaking both to appropriately alter the story and to physically incorporate Grievous.