Those ideas are actually really cool. I wasn’t planning on doing too much arc mashing but I could be swayed otherwise.
I think your idea of having prequel live action woven with the Clone Wars animation could be a thing throughout all of your edits. Heck, you could even create and alternate, prequel trilogy with that concept!
One episode could focus on Anakin and Ashoka, which could use footage from TPM and AOTC
One episode could be a Maul episode, with duel of fates to open as a flashback
One episode to wrap it all up. Using the best moments of ROTS to close the whole thing off
Just relaying some ideas to help you out. I reckon some storyboarding would be in order 😃