I’m still of the opinion that all the fight needs is a matte painting extending their hallway into a more dramatic room with perhaps a pit they’re skirting. Also, cutting a few seconds out of the fight to make it seem more energetic.
100% this!
It only needs a tiny few tweaks and such. It doesn’t need flips and dips, but adding a matte painting and extending the hallway and things would be a wonderful addition to the movie as long as it stayed within the limitations of a late 70s/early 80s movie.