Scripting

I currently deploy Win7 (sysprepped) images via my K2000.  I've currently set up my main deployment so that the hostnames are based on a set format using the "setcomputername" app.  Basically "location - service tag".  Works very well.  I sync this image to my RSAs (remote K2000) located in other countries. It would be awesome to be able to have the "location" part of the hostname change based on where the image is being deployed.  Is there a variable that can be used, similar to the $serial in "setcomputername" that could be used to change the location to a specific suffix so that my hostnames changed based on where the system was imaged?