The NLDS schedule has games on:
10/4, 10/6, 10/8, 10/9, 10/11
So I think at this point I’d line up
Gm 1 Freddy
Gm 2 Priester
Gm 3 Gasser/Patrick piggyback
Gm 4 Freddy on regular rest
Gm 5 Priester on regular rest
Don’t have to be worried about the bullpen being overworked either with 3 off days in 8 days. So all the late high leverage guys and Ashby should be able to pitch in at least 4 out of 5 games.
NLCS is way trickier.