It’s definitely possible to cut it in a way that removes the major problem with the ending of this episode. It can be edited to re-arrange the sequence of the duel, whereby the end is actually Obi-Wan underneath the pile of rocks, and Vader then walks off, leaving Obi-Wan for dead.
I’ll be doing that for my edit!
How did you address Vader staying alive after Ben has him dead to rights? It’d feel weird if boththis edit & RotS end roughly the same way.
I don’t think there’s anything you can really do in a fan edit to change that, short of reshooting the scene.