Peter,
Here is a link to a discussion of limbo:
http://www.newadvent.org/cathen/09256a.htm
Nothing in the linked text leads me to believe that your position is valid. Therefore ( fully aware that exegesis is not my forte, yet relying on David’s theory of those smarter than I - the Pope in this case) I hereby accept your challenge.
Let’s here what you got.
RJT