Price is slated to pitch Sunday on regular rest. He won't go deep in the game, 4-5 innings. They aren't going to skip him and have him pitch game 1 after 8 days off. Porcello will go Friday which sets him up for Game 1 on 5 days rest. ERod pitches Saturday.
Playoff rotation sets up as:
10/6 Porcello
10/7 Price
10/9 ERod or Buchholz
10/10 ERod or Buchholz
10/11 Porcello
Also, should the Sox have home field in the ALDS, Porcello has been virtually unbeatable at home, so having him in games 1 and 5 at home is a plus.
I would look for Buchholz to tag team with Price on Sunday to get him a little work. Again, otherwise he has 10-11 days between starts.