Photo Gear Approach 3: Do What I Do
Okay, here we go. You read through all that nonsense just to see what I do, right? Well, like I said before, I'm learning as I go. But this is my approach... it works great.
Here's my simple approach. I am using the Sony A7r Mark 3 and not worried about it. My main lens is the Sony 24-105mm F/4. If it gets dirty, I'll get it cleaned after.
Sometimes, if I am really worried about sandstorms, I use the rugged Fujifilm X-T2 Mirrorless Digital Cameras much as possible in the daytime. I have four different lenses for it, ranging from wide-angle to prime to telephoto. I have all the lenses in the "Kit" Link, but I mostly use the Fujinon XF16-55mmF2.8 R LM WR. This gets me through 80% if my photo situations.
Note that I realize the Fuji X-H1 is a newer camera, I don't think it has any features that will be beneficial to you at Burning Man for taking photos. The biggest feature of the X-H1 is in-body stabilization, but I've never had a problem with blurry photos with the previous system, even while taking photos while biking. So, get the X2 and save around $500!
This camera is tough as nails and has thicker skin than my butch grade school P.E. school teacher. The more dust storms, the more better. Bring it. I jump on my bike and ride right into the storm to see what emerges. I have no fear because this is one of the toughest cameras in the world and is totally weather sealed. You can even hold the thing under a water faucet and take photos. I mean, that would be dumb, but it's just an example.