Hi, everyone, our coop plans are back on!

The expense that was hurting us the most was the cost of lumber, so I started looking for plans that required less lumber. I was inspired by
Gallo Del Cielo's hoop coop and some videos by
this couple.
When I showed these to my landlord, a mathematics professor, she got very excited and wrote out two whole pages of equations to determine the optimal height and width of the hoops, lol. She's back in, although I have yet to calculate final costs. I wanted some feedback on the basic design from you all first.
The basic construction is 1/4" hardware cloth and heavy duty tarp over cattle panels. I know the coop looks rather bare. We'll add perches and toys to make life more interesting for the hens. This was just to show the layout. Please excuse my crappy Sketchup skills, you know how much I @%^$# that program!
The design is for 8-10 laying hens with 12.8 sq. ft. of ground surface area per hen (probably 4 EEs, 4 leghorns, and 2 buff orps). They cannot free-range due to the many Cooper's hawks we have here. We also have coyotes, raccoons, skunks, bobcats, rattlesnakes, feral cats, and pack rats. The reason for hardware cloth going down 1 foot below the coop is because our yard is plagued with those burrowing ground squirrels.
Town code requires chicken coops to be predator proof. Basically the entire thing is a fully enclosed 1/4" hardware cloth cage. A wireless cam will help us keep an eye on the coop while we're inside our home.
I don't expect the inside of the coop to get soaked when it rains but you know how those monsoon downpours can be. The concrete block caps on the ground are there to keep the wood out of water and mud as much as possible if water gets in. We'll use pressure-treated wood anywhere it touches the ground. The plywood panels on either side of the 6' roosts should block water and wind.
The western sun in summer is going to be brutal on the open west end of the coop so we will add a pull-down shade over that end. We're also putting in misters and a fan and a shade sail over the exposed hardware cloth hoop for summer. With that and the 8' ceiling, a white tarp (instead of black), and open east and west ends for air flow, that should allow the heat to vent and help keep the coop cool, right?
More questions:
What are peoples' experiences with summer and winter desert temps in hoop coops? Can the hens stay cool enough in summer and warm enough in winter? The tarp only allows for about 32 square feet with direct/overhead sunshine - is that going to be enough sun exposure for the hens, especially in winter? How often do tarps have to be replaced? How do you anchor the coop against downbursts? Anything else we should know about hoop coops in the desert?
ALSO... does anyone here raise mealworms for their chickens? Do you keep your mealworm kit outdoors? How do the mealworms do in our desert temp extremes?
P.S. I am loving this rain!!