Tomorrow morning I'm training on the course. I'm going to do a short OWS, ride the full bike course, and run on some of the run course, but check out as much of it as I can. I ride with a Garmin, so I will know the answer to your questions. I will post some of thoughts/observations about it in the official "race" thread in the TX forum tomorrow evening when I'm home...so keep your eyes out for it!
Total climbing on the bike (56 miles) is 2248' elevation. Small rollers here and there, some long sections of false flat, only a couple of hills of any substance, but it adds up.