I've gone through this and tapered the tops of the table supports and bottom of the tables and added some cylinders under each chair to create minimal overhangs.. Set overhang support to 77 degrees and you will not have any supports on the chairs or tables. This will solve the issue with breaking the parts trying to remove supports.. It's not the best looking, but you don't really see under the chairs when the dining car is put together.

I have uploaded the GCode for my Artillery X2 running clipper - probably won't work for most people.