As you know, shipping in this country (particularly with the government-subsidized postal service... ew. I assume FIRST is using FedEx, though) is kind of sporatic, so it's hard to say when your kit will actually arrive. However, with respect to your question about what you can do if your kit arrives after Wednesday, see this thread:
http://www.chiefdelphi.com/forums/sh...ad.php?t=32222