LOL! Friend of mine just moved to SD and they just got there.. They left Bham on saturday afternoon
I've done 16 hour non-stop from St. Pete, FL to NYC (1100miles) back when I was in college by myself.. And I was in shape and I was still beat up by that trip. Doing double the mileage in an FD sounds like a nightmare to do it non-stop (no sleep over). Seriously, I think best you could do is break it up in 2 days.. 1000 miles a day, sleep somewhere and get to Irvine day before to relax.. otherwise, you'll be too beat to even enjoy the event...
This is what I'll do.. Leave early wednesday, get to tx somewhere that night.., leave early thursday get to CA that night.., sleep late friday, enjoy the CA weather and hangout, and hang out with some rotards on friday night, saturday, sunday, leave CA early... come back to Bham late tuesday night/early wednesday.. Its still a week trip