I know you said you were not looking for suggestions but I think many of us have walked a similar path. That is playing a game that is not working for you anymore, but one you would like to finish.
I was there not too long ago with running the Fantasy Trip. I wanted to give if a try again, and it was fun for a while, but eventually played it’s self out. The campaign’s setting and characters were successful, but we were done with the rules, so I ported everything over to Blades in the Dark. This was a game I had never run before but after reading the book thought was THE system! It turned out not to be the holy grail of RPG’s. But that is for another thread. Anyway we ported over the setting and characters and the game continued. As a matter of fact I just ran it last night.
The campaign is now loved by one of my players and liked by everyone else. This is enough for me to continue running the game. Even though the player facing side of the game bugs me, it does let different stories be told and I love that.
Additionally, recently I bought the Pathfinder version of Savage Worlds because I wanted a D&D game that was familiar, but not too familiar. D&D 3.5 was the most broken version of the game and by extension I am sure that Pathfinder would not be that game for me, but having it translated into Savage Worlds seems to be a viable solution. I haven’t gotten it to the table but will at some point.
Whatever you choose to do, good luck to you and your gaming group!
Also, a small apology, about the 3.5 reference. That is my personal opinion and I am sure many of you enjoyed 3.5 and Pathfinder and that is fantastic! Keep on, keeping on!