Thanks Mike.
We're doing Saturday to Saturday, with both Saturdays being wasted to travel, so not much weekend time. I'm not sure we can pull off early morning. None of us are morning people, and our hotel is apparently nowhere near Universal, so the exact time we can leave for the drive is dictated by when we can drop off the park-goers.
I know birders always want more reach. How painful will it be, using my 70-300L on crop? Should we be looking at renting something longer? I think somebody mentioned Florida birds are almost tame, so perhaps 300 will be fine.