I looked it up, Senate is now 23-17 Democratic. So 6 Democratic noes and 4 Republican Yeses would result in passage. Not sure what happens in the event of a tie as NJ does not have a Lt. Governor.
But, like I said, two of those 4 Republicans most likely to vote yes have already voted no in committee. The odds of Beck or Bateman switching back to yes aren't good, and they were already more likely to say "yes" than Sean Kean.
I think a 20-20 vote fails, but I'm not 100% sure of parliamentary procedure.