There are 3-4 kiosks in 7, they're at the left end of the room. Be sure to fill out your US Reentry form (even though you don't have to) -- as the line for the kiosks can sometimes be quite long. They'll usually call you up to the front for manual (in this case faster) processing if you fill out the blue form.

When you go through customs/bag check, the GE line is the rightmost line -- it's the same as the crew line. Strangely I have found that the crew line moves slower than the normal lines... but oh well.

Having been through T7 CBP serveral times, I still don't understand why they don't flip the room around completely. It would be much more efficient to move the GE/Express lanes to the far right because then you could exit directly into the hall to customs/bag check, without having to double back.

In any event, with GE and priority baggage (or no checked bags) -- you can be out of there in < 15 minutes.