That 3800 includes all the mounts and addition hardware you'd need including sway bar links, extended brake lines, etc. I should also note that you don't need new bump stops with coil overs and you don't need limiting straps. How exactly are you going to install these wonderful struts? How exactly are they easier to adjust than coil overs?
I remember reading about these awhile back, I know for adjusting them all you do is add or remove nitrogen and that is it. they have internal bumpstops but I wouldnt trust them for anything but the slow stuff.
And since they are basically an air shock from my understanding they would probably suck as a DD or on anything but a crawler.
But none the less it would be a pretty cool set up and very simple.
Still would have to buy coilover mounts though which is another 1000 bucks so they cost about the same as coilovers
Edit:
after reading a little more on ORI website they seem to be pretty advanced.
They are internal bypass struts with built in hydraulic bumps and a hydraulic cushion at the end of stroke for when the suspension "drops out" on jumps.
Also available with reservoirs for extra cooling so they probably arent to bad for desert driving either.