My current bike has seen 3 burns, all with the same parts completely, aside from one new inner tube. I lube it thoroughly pre-playa with teflon lube, and have at it.
The key is this: The very first thing I do when I get home...Like, within 24 hours!!!...is to douse the bike in vinegar or lemon juice: Dripping, soaking, penetrating everything. Let it sit for a few minutes, then hose it down. Then, hit the chain, etc. with a degreaser and a brush. Relube thoroughly, and you're done 'til next year.
If you let the dust sit on the metal for anything longer than a day while exposed to any kind of moisture in the air, it'll turn your bike to toast with breathtaking speed.