We have taken the dingy ride from Great harbor to White bay several times. You are going to get wet... don't do it in the dark. Or walk over the hill from Great Harbor to White BAy, Or take a cab, All good options.
That said... Friday sounds really busy and really far away from Hodges. I would consider Friday at Cooper , Scrub, Marina Cay or Trellis. That's a long ride for a Saturday Morning. Better to end a great vacation in a slower more relaxed fashion. Who wants to rush around and get stressed out?
I might consider dropping Anegada, Do it next time.
M