Part of your argument against the need for Judas, based on the idea that Jesus was so visible and known anyway, was one put forth by Runeberg (that Judas' betrayal was superfluous) for which he was roundly chastised and castigated by three theologians, which in turn led Runeberg to revise and modify his argument to one based on morality.
Do you have a copy of The Complete Fictions of Borges? If not, can you get one pdq?
(I don't want to say more until you can dialogue on it. There's more to it than surface theology.)
I also want to discuss "The Theologians" and "The Gospel According to Mark" (harrowing, cutting to the bone, brilliant, EVEN when predictable, just amazing... ok I'm gushing a bit, ...).