do the drive from kissimmee before rush hour.
even if you have extra time you have to wait at UO, it is worth it.
traffic gets backed up on rush hour periods.
i stayed in kissimmee once in the early 90's and drove to universal.
it made the biggest difference n the world not having to sit in traffic for that short drive.
and, it was much easier to have the kids out of the car for that time period which would have seemed like an eternal time otherwise......
there are free lockers by all the major rides where you can not take belongings on. the free time is for one hour. if lines are long, the tm's can extend that one free hour period for the lockers.
use the free lockers for the camera and belongings.