We have a long (to me) drive to Orlando, more than likely will take about 8 hours including stops. Our trip is short, just two full days at the Magic Kingdom. I am tempted to add in the MVMCP the day we arrive, but am not sure how realistic this is with children (6 and 8). This is a trip with extended family and these are my nieces, so I don't have close personal experience to judge how reasonable it would be to be go go go at the parks after that kind of drive, and fear waiting until the day of to decide as I assume the party will sell out. Their mother was noncommittal when I tried asking (and I don't think she realizes what the party is), so I wanted to throw it out there to those who are more experienced.