I am unsure what the highest point differential is after 10 games. However they recently posted a similiar stat about the Celtics and they were very close a few games ago to being at the top.
This is the record for a season 1971-72 Lakers (+12.3 ppg)., so if the Celtics were +14.12 after 9 games, they had to have a chance to break the record after the first 10 games of the season.
I am also unsure of what the most ridiculous foul run ever is. This is a record
Most personal fouls, one quarter
19-Dallas at Denver, January 15, 1982
So with the Celtics getting 10 in 5:38, that works out to 21 for a full quarter, so obviously that is very close also.