TwistedPhil
+1y
Air Ride Technologies has a "plug and play" system too, and it looks like very nice parts in a compact package...
With that said, it's up to you whether you're willing to pay top dollar for that compact footprint. I'm personally a big fan of putting the valves out at each corner, for the best response time and least amount of wasted air, and these systems obviously put them all together in the trunk.
If that's not a concern for you, you could always source the parts you want, mount them to a piece of plate aluminum/ steel/ plywood, and build a shroud to cover it all up with...
I won't comment on that other company, though, and I don't think I need to- it looks like there are enough opinions on here already!