Truck camping the Grand Canyon in February. Seeking advice

If you decide to do the Skywalk which is in driving distance of Vegas there are couple no hookup campgrounds in Lake Mead Rec Area.

Nice flush toilets. Las Vegas Bay would be the closest. 10 bucks a night with a Geezer pass. I spent a few nights there a couple weeks ago. They were open even with the governent shutdown but toilets locked but dump stations open. When government opened back up toilets were back open.