*sheepishly wanders back in*
..I remember this one time in History class when we had a substitute teacher..
Actually, to the OP, it is hard to get your mind wrapped around just how big it is out there. It's huge! And while the space in the inner rings fills in fairly quickly, if you get there early in the week (Mon\Tues) you can 'homestead' or 'lay claim' to about as much space as you truly require, especially in the outer rings of the city, where there will be progressively more space still available. Feel free to build whatever shade structure you can dream up and afford to bring, keeping in mind always that at some point during the week you'll most probably be facing very high, possibly sustained winds of 50, or even 60mph. That is the serious side of it.
I had a general idea of where I wanted to camp ahead of time, but the first decision once you are in is, do you take a left and end up on the 9:00 o'clock side of the city, or a right, over toward the 3:00 side. It's all good. Then ease into an empty location, get out and check with the neighbors to make sure it's not reserved, and there you are! Your new home for the week!
(Oh, ..and D Lot isn't where you want to be.. that's where they funnel you off to if you arrive before the gates open.. 'bad burner, bad' )