Those pictures are very helpful. The one big concern I have is what are the road manners like at highway speeds? The truck I would put this on is staying street legal and highway driving (at 65-75 mph) for decent length trips (about 60 miles one way) aren't out of the question with its use. Would just the coilover be enough or would a separate shock be needed? And would it be easy enough to fit in? My truck is very nose heavy being a diesel and all the extra stuff under the hood. The truck weights just under 6000lbs and at best guess at least 60% front weight, probably a little more even.
The shock itself is plenty, unless you're desert racing you won't need more than the 2.5" King shock that we include in the kit.
As for driveability on the highway, that's not an issue at all. The trucks we have here with our coilover setup have seen thousands of highway miles and they both perform just fine. Willard and the Ultimate Super Duty both saw thousands of miles on the Ultimate adventure trips alone. Our coilover kit performs better on the highway than leaf springs, there is no bump steer and very little roll steer.
We would include springs to match the weight of your truck, just have the truck weighed front and rear and we could get you set up.

. The potholes can be pretty big.