Hi Michael! Welcome to the Disney Parks Moms Panel!
You are about to have SO much fun on your Walt Disney World Resort vacation! Between an amazing stay at
Disney's Polynesian Village Resort and fun events on your itinerary like
Disney's Keys to the Kingdom Tour, your trip sounds absolutely dreamy!
My crew always tries to arrive early at the theme parks and we even plan our
breakfast reservations for the early morning hours before the theme parks open. I have always found that the monorail is running early, just for this reason. You should be able to hop on the
Resort Monorail and get to Magic Kingdom Park at your designated time with no issues at all!
I suggest speaking with a Cast Member at the
Front Desk the day before your tour, just to make sure there are no scheduled repairs planned for the monorail and that it will be running early enough for your trip to
Magic Kingdom Park the next day. They can help you arrange alternate transportation if needed, but most likely you will be able to catch the monorail bright and early!
I hope this helps, Michael! Please let us know if you have any other questions.
Tabitha