IIRC, The original concept for the ESB was that ships would moor close to the surface like dirigibles and discharge passengers and cargo over ramps.
I like the Vader stays on the SSD and communicates with Jer by holo idea. It saves the reveal for later.
Luke could escape on the Emp's throne. Deck covers could lift and two halves of a heavily armored escape pod could close over Luke. Vader would know how to activate it from observation of construction. Only room for one?