Here is a photo example of our Otis modernization to GAL. Im sure there will be critics but it work well. We retained the car side components and hall side.
The door bracket should be positioned a bit higher but we have not had an issue.

Attached Files
rsz_img_0155[1].jpg (45 downloads)
rsz_img_0158[1].jpg (36 downloads)
rsz_1img_0162[1].jpg (32 downloads)
The better the effort, the better the result.