Quite simply, you must provide your own EVERYTHING. Black Rock City is a blank canvas. There is nothing there but what we bring (and remove).
Perhaps someone will suggest sharing equipment, but only a tiny fraction of burners frequent this forum, so that's a real long shot.
The good news is, you may drive stakes in the ground for guy-wires to support your structure. Wind is a factor; you may not be able to perform when you wish. But a structure of steel tubing and guy-wires would be fairly safe from wind damage.
Even better, perhaps: a sturdy steel geodesic dome, and you perform inside it? Burners are used to climbing on geodesic domes as "grandstands", and you would not have to fool with guy-wires.