Good questions. Lots of good questions.
The campsite the night before Kokopelli has generally been Jouflas Campground, about how you have marked with the red X. We have also played it by ear, depending on the weather, space availability, and fees, we have stayed across i70 at High North Campground. Both the green circles in the screenshot below are great spots. For the group I lead this year, like prior years, I plan to share a detailed planning/itinerary email as the dates approach, and we know who is in this year's Kokopelli run. Good find of the Mud thread,
@Inukshuk, has done a splendid write-up. I have always shared Daniel's write-up in my Kokopelli Krew emails over the last few years.
Please note, in my opinion, the campsite the night before Kokopelli is not a "make or break" part of being on the Kokopelli run. Kokopelli begins on the first morning with the driver meeting, CM waivers, truck inspections, trial etiquette, group intro, air down, radio checks, and saddle-up in the dirt lot just barely south of i70 circle below in blue.
That picture you grabbed from Mud was from the 2nd night on the Tues-Thurs Kokopelli I lead in CM 2023. Normally the 2nd night is at Robert's Bottom (RB) by the river and cliff bottom. But we had a small group of about 6 or 7 trucks, we were fast & nimble. After getting to Robert's Bottom two trucks went scouting a short lil bit, where they found that spot about halfway between RB and the trail head to Top of the World. After the scouts came back and shared the news with the group, there was still good daylight, and we all decided to relocate the 2nd night to be up high on top of RB. Those rigs with the root top tents (RTTs) just took the slickrock cuz it's what they do. Right below them where the photographer was standing, the ground was plenty sandy enough for ground tenting. My co-pilot friend that year was ground tenting while I slept in the bed of my Tacoma. All were happy campers.
Hammer drill and Tapcons not required. Please don't drill/bolt into the areas we explore. They do get chewed up as-is and we do what we can to leave areas nicer than we found them, like we'll see who can collect the most interesting pieces of trash along the trail. We want to continue exploring these areas for generations cuz they're amazing areas in this world. All the same, if you are prepped with a hammer drill and Tapcons, I'd love to check out your storage/organization methods.
Fish Ford (FF) and RB are the two official campsites we use on the 1st and 2nd nights of Kokopelli respectively. Both are great for RTTs, ground tents, hammocks, etc. If there's a situation that causes us trouble, we'll figure things out together for the welling being of the team.
If you'd like, you're welcome to look over the hard copy maps I carry. You're also welcome to record our Kokopelli trail this year as we drive it.
Things become clearer as we get closer to the date and get into it all

all the same, good questions. Keep them coming.
Allen