I have been working on the modifications, PVC piping to open up ductwork and shortening supply grill collars to improve air flow. Just have gotten the units to stay running "most of the time".
Adding (2) Supply grills this weekend and on the list is to remove both units and repair the duct connections in the plenum where the connections have broken loose or blocked by bad tape job in the factory.
Getting to be summer in Florida and I will not suffer through like last summer..
Adding Returns is just plan "B" if needed. Just was surprised that I was not finding replacements.