...however this late in the game it will be difficult to join a quality theme camp, as most camps have been working for months together by this point and do not look kindly on last minute wannabees. No offense intended to the OP's
I agree that your best bet at this time is to plan on camping alone. The 9:00 side of the city tends to be more "adult" oriented, but also dustier because it is downwind. The 3:00 side is a bit more restrained, but is less dusty. Plan on being at least 4-5 streets back, which means bikes are essential. Have lots of lights and blinky stuff for night. You will assuredly be camped nearby a cool "theme camp" (if not 50), and will have ample opportunity to mingle and see what works and what doesn't. Next year you can "join a theme camp" or roll your own.
Talent hits a target no one else can hit; Genius hits a target no one else can see.