My kitchen ceiling collapsed a month ago, and the whole thing was made worse by cowboys working on it.
I finally got almost to the end of the mess, so I sympathise.
My beams looked similar to OP's my floor was trash as well, and I had my LL trying to tell me it was habitable. The floor has now been redone, ceiling fixed, I manually cleaned a lot of mess, plaster over cupboards, surfaces etc.
Cleaning up after the ceiling collapsing was a nightmare, made even worse as there was 2 ceilings up there as at some point a new one must have been put on top of the old. A year or so later some more came down and I had to clean up again.
The plan now is to get a new kitchen put in but I can no longer be doing with trades for big jobs.