Then offer to borrow someones truck for 2 weeks with you paying their full coverage insurance for the whole month.
Offer to borrow someone's truck to take to Burning Man in exchange for, in my case, $75 of insurance? Yea, right.
The amount of wear and tear put on a vehicle going to, and while at, Burning Man, is plenty enough if I am going. I would never want my vehicle going unless it was transporting me and my gear.
When borrowing your friends truck, be sure to let them know it will never be the same again. The dust will NEVER be completely gone. And most likely some douchebag greeter with walk up your hood and onto your roof, cracking your windshield and denting the hood and roof. Resulting in a few hundreds of dollars in damage.