These ideas, and your work ups are excellent. I particularly like the Rey dream, reordering the sequence of events leading to Rey & Finn meeting, moving the Vader prayer and splitting the interrogation/escape.
I look forward to what other ideas you have!
For the possible message from the republic, could any of the Jakku Message scene be used?
Also I am curious if you were to reinsert the “Tunnel Standoff” scene where would you put it?