Craig,
still working on my plans, need to determine how big a fire I will be dealing with at work around that time, plus trying to see if I can get something close to my seat last year (Race Control is hard to beat!).
As for camping, don't think the infield is available, but Indy has camping pretty much all around the outside of the track. I brought my trailer and parked directly across from the main entrance last year. There are some areas that are a little more "active" then others. Where I was last year was a little more "relaxed" which was good as I was able to sleep.
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Charles Gallant