I am not trying to convince you that the GV is the way to go, or I made the correct choice, I clearly understand that is not an avenue you wish to pursue. It is for the very reasons that are stated in this thread that I chose that path. Both the regular A833 4 speed, and GV units are tried and true rather than specialty items with spotted track records.
Any way you slice it, as a 4 speed owner of a Mopar A body, wanting an OD setup is not an easy choice, and the decision making process is a dance of compromises. Happy motoring, good luck with whatever choice you make.