Good catch on the cargo doors. Yes, they are an homage to FJ's SFHQ.
IIRC these doors belonged to a sphere in which FJ parked the vessels which is obviously not the case here. For a sphere these doors are sort of inevitable but for the Jefferies pods I have some doubts concerning practicability, once opened these are obstacles to navigate around.
The TOS Enterprise's
shuttlebay clamshell doors and those on the AMT model kit of Space Station K-7 were essentially vertical shutters.
When I look at these pods I can't help but think that horizontal shutters would be much more useful from a practical point of view.