Yeah, it looks like the vendor for Sprint and att use the same ones, based on the sites I have looked at. If I remember right, att is on the next tower over, and Verizon is on the Sprint one... but I may have that reversed.
I have usually seen the site prep work and all done before rrus, antennas, and wiring up top. If the cabinet and backhaul are really running this far behind, yikes!