Only a game and a half back (one game in the loss column), plus Boston already owns the tiebreaker and gets one more game against Orlando, at home on the 18th (night after the Cs play in New York, though). If they go 4-2 in the next 6, I think they have a shot. But that's gonna be tough to do since those 6 games are three sets of back-to-backs in a span of 8 days: SA, @Chi; @Ind, Phil; @Mia, Atl. Playoff atmosphere creeping in, love it.
As for the 5 seed getting homecourt over the 4 if it has a better record, that's really just something I've read on a variety of CB posts, I can't confirm it but have started accepting it as true because it came from multiple sources on here who seem to be pretty reliable.