Does anyone know how long of a trip this is from Mizpah to the summit and then back down to the AMC Highland Center in Crawford Notch?

Or is it easier (relative term) to go straight over and down to Pinkham Notch Center?

Or maybe Pinkham to Crawford?

Main goal is Mt. Washington summit attempt from a starting point at either Crawford or Pinkham with ability to nab a few others on the way.