Hi, Dean.
Here are a few links that may help you.
www.micromark.com sells a downdraft booth similar to the Artograph system (Microlux)
www.artograph.com sells a number of downdraft-type booths.
www.dickblick.com sells Paasche backdraft/cross flow-type booths.
www.dixieart.com sells Artograph, Sparmax, and Paasche booths.
For overall price/efficiency, I would look closely at the Artograph 1520 booth (IMHO). It is a downdraft booth, and is equipped with an activated carbon filter so you don't have to vent the booth to the outside, although provisions are made so you can if you desire. In addition, airflow requirements are about half that of a typical backdraft or crossflow-type booth.
I may be mistaken, but I believe all the above can ship overseas.
Hope this helps some.
Gip Winecoff