I've got a complete kit I assembled myself that includes the lowering springs, camber bolts to adjust the rear alignment, as well as 4 New OEM AC Delco shocks from the '08 Equinox Sport to handle the lowering springs (yes, they fit the 2nd Generation Equinox & Terrain). The shocks are really what makes this kit so expensive because the shock prices have skyrocketed in price over the past year. I've got $700 tied up in the kit, but if you price it out now you're looking at $850 or so. The kit includes AC Delco front shocks 506-701 & 506-702 and a pair of 560-570 rear shocks. These are the shocks that came on the 1st generation Equinox Sport that was lowered from the factory and is the only shock I can find that was designed for lowering springs for our cars. If you've ever ridden in a vehicle that was not properly lowered with springs and shocks designed to work together, then you know how "bouncy" the ride is with just cut springs or just a set of lowering springs without the correct shocks.
I'm still on the fence about letting my kit go because I plan to install it in my '15 Nox when my 3/36 warranty runs out, but if I got an offer of at least $700 (what I've got in it) + shipping, I would consider it! I will not separate the kit or lose money on it since it's now so rare.