I see where you’re coming from. I always felt she was genuinely tempted, and didn’t really make her decision until she stretched out for the saber, debating on what she should do as her hand raised. I mean, she definitely considered it as she was standing there.

Eh, I really don’t think flashing back to that would really work. The only other thing I could think of would be that the lightsaber somehow got damaged during the kamikaze. People cold infer that maybe but it might seem weird since it was in Kylo’s hand.

I don’t know exactly where the Luke/Yoda scene would fit in your version, it’s hard for me to picture it somewhere inbetween the kamikaze and when Kylo wakes back up, but at the very least I think it would still have that same effect you’re going for if you put it where both Darthrush and Hal decided to put in, in between Kylo waking up and Leia staring out the door on Crait.
Speaking of which, even if you cut Finn and Rose landing in the base, you gotta keep those great shots of Leia looking out on Crait.

Yeah, a few Resistance members definitely have a few close calls with their ship, but you do lose “Finn! Rose! You’re not dead!” and Poe scratching BB-8’s belly. Also the little moment Finn and Rose realize just how many people they have lost, too. I guess besides that, the important the you will lose is Finn and Rose reuniting with Poe and the Resistance. It might be a little weird that we don’t see anyone acknowledge that reunion, but it could work without it too. Just gotta try it I guess.