Similarly not sure how to have Ben appear alive at the end with my limited VFX skills. If there was a way to edit him in though that would be interesting maybe even worth moving the chess scene back to the beginning. But then again it’s also nice having Rey be more independent.
Maybe similarly to all the very nice new ship CGIs, one way could be showing the old ROTJ ship that Ben comes to Exegol with in your edit, maybe showing that leaving Exegol, its a start. I appreciate your edit for keeping Ben alive without compromising the quality of the ending, though, well done!