RetiredBA/BY, if you're going to quote others, it is normal PPRuNe courtesy to use the 'quote' option....
Regarding probe/receptacle on Voyager, that probably falls into the same court as the original probe on the TriStar. Which, much to the relief of their crews, was soon de-modded.
A cargo door on Voyager? The existing underfloor compartments are entirely adequate; if not, then there's always the C-17A fleet! Shortly to be joined by the Atlas.