I would be surprised if Poole were in the squad on Saturday; as I understand what I read on the official website he is scheduled to return to training this evening (Thursday) following his latest injury. I should imagine he's some way short of even the subs' bench as yet. As regards the team for Saturday, if Harrop is fit I assume he will start the game. I am another of those who feels Wynne should be given a run in goal (and I don't mean just one game) but I don't expect that to happen. Otherwise there aren't really any other viable options - Richman provides more in midfield than Williams can offer in my view; the current back four is the best available, so Densmore & Harrison join the bench, and there is no real attacking alternative, so Sang or Mantack make up the subs along with (presumably) Wynne.
All the best to those travelling on Saturday - afraid it's just too far, too expensive & too time-consuming for me.