I think I’m on board with almost all your decisions, though I would consider the Order 66 arc more vital because of its implications for the finale (the crucial “Find him…Fives” line can make the moment fall flat for someone who’s not up to date), and I’d include Bounty in at least the continuity cut, since it shows the beginning of Ventress’s bounty hunting career.
I’m on the camp that likes the Citadel arc though I don’t believe it’s necessary for the Mandalorian cut. But it has to bee in all the remaining ones since it has more of Ahsoka, introduces Tarkin, features Echo’s presumed death, etc.
In general I’m glad we’ve similar thoughts in this! I think I’ll be checking out the chapters you want to review to see how they can be merged or edited into any of the existing cuts. Greetings!