Planning field trips and the Championship event schedule

[Phyrxes]

During the process of compiling dates and travel plans to submit to our school administration regarding FRC this year I came up a question that I hope the CD community can help me with.

In looking at the agenda from the championship from last year I see no practice matches scheduled for Wednesday, mostly workshops and the like. The reason I ask is our building administration has asked that we minimize the amount of time our students would potentially miss from school. As St. Louis is approximately a 15 hour charter bus ride away, we would like to be prepared with an appropriate arrival time to ensure uncrating/inspection/whatever else you do on Wednesday is able to get done.

Right now we are looking at two scenarios for a charter bus:
1. Leave Tuesday night, drive overnight, and arrive Wednesday late morning/noonish.
2. Leave super early Wednesday morning and arrive late Wednesday afternoon/early evening.

How early do we really need to plan to arrive on Wednesday if we qualify?

Thanks for the input.