Welcome to planDisney, Elizabeth!
We are thrilled to see that you'll be visiting Magic Kingdom -- and even MORE excited to hear that you'll be visiting our friends from the Hundred Acre Woods at Crystal Palace for breakfast! Make sure your camera is ready for pictures and that your arms are ready for hugging! You're going to have a magical (and delicious) time.
The Monorail from Transportation and Ticketing takes about 10 minutes. I like to allot about 10 minutes for security and another 10 minutes for the walk or tram ride from my car to the security checkpoint. That's about a 30-minute window. Thankfully, Crystal Palace is close to the front of Magic Kingdom, however the morning can sometimes have larger crowds at the ticketing touchpoints at Magic Kingdom... I'd recommend about 10 minutes for you to get checked in, walk to Crystal Palace, and let them know you've arrived for your meal. Altogether, you're probably going to want to allocate about 40-45 minutes.
Transportation and Ticketing Center usually opens 60-90 minutes before park opening, so you'll need to see when the park opens on the day you're visiting. Assuming it's a traditional day that the park opens at 9:00am (you'll be fine to go in early for your dining reservation if that is the case), that means the TTC will let people start parking at about 7:30am. I would recommend getting there around that time, so you have plenty of wiggle room before your reservation.
IF you happen to be late to your Crystal Palace Reservation, just visit the Cast Member at the front of the restaurant know your situation and they should be able to help you further!
If you want to keep the Hundred Acre Wood magic going long after your meal, be sure to ride
The Many Adventures of Winnie the Pooh.
If you have additional questions before your trip, we'd love to have you in our neck of the woods again!
TTFN: Ta-Ta For Now,
Allyn