Yeah… it’ll be hard to tell what is actually relevant until the full thing has aired.
Another option is to take the approach to Tatooine from Chapter 9 as your intro, then go to the Cantina scene in 10, and take the beginning of the travel with the fish lady. Cut from prior to the X-Wings, and go into the continuation of this mission in Chapter 11. That way the armour is explained in dialogue, setting up the act 1 mission, and we’re off to the races with Dyn meeting the hooded woman (again, presumably in Chapter 11 since he’s still with the frog lady in that scene from the trailer). This is all assuming this character is someone relevant to the story, like many of the theories that it’s Sabine from Rebels. You could cut out potential references to how damaged his ship is, and if he mentions needing repairs, his ship always needs repairs.
I’m not sure that cutting from the Tattooine exit straight to chapter 11 will work because of the state of the Razorcrest.
I’ve managed to cut out the spiders from chapter 10 and it works well. I’m at 57mins including crawl for the first 2 chapters. I’m going to leave it as a rough cut because its still not clear how essential these 2 chapters will be to the story.