Watched the film again and I don’t really think a fan edit could significantly improve it any way. You could certainly streamline things - I think cutting out Cassian and Bodhi’s intros and rearranging the first scenes after the title card would probably be for the best, also definitely cut Krennic meeting Vader - but the real issue with the movie are too baked into the story to change without any deleted scenes (which probably wouldn’t be of any help anyway).

Crawl is a bad idea.