How well do you think these would work in RVs when paired with the number of solar panels that fit on top of an RV? Would this work well at burning man vs running a generator?
You'd have to calculate it and your expected power usage. You probably wouldn't be able to run AC on full all day without a massive solar array. Check out how big a 100w solar array is, how many of those can fit on your RV roof, and how much power your AC uses. You'd also need a big (and not 100% efficient) inverter. Also take heat and dust inefficiencies into account.
TL;DR you're better off going in on that industrial diesel 3-phase generator rental which comes on its own trailer.