Hi,

My friend and I from Australia are flying into Lax (after being on the east coast) and renting a campervan on the 7th April.
We have to return the campervan on the 20th April in LA. We are just trying to put together a loose itinerary/route and am looking for some feedback/cool things to check out along the way. At the moment we kind of want to go:

LA
Death Valley
Las Vegas - meeting some friends there for a night or 2
Zion national park
Bryce Canyon
Page - Antelope canyon, White pockets, Horseshoe bend
Grand Canyon
Sedona - Devils bridge
Phoenix - hot air ballooning
LA

Roughly how many days/nights would we need to stay in places?
How easy is it to find places to camp for free/cheap along the way?

Thank you in advance!