Contacting the GSF Agency is absolutely the best way to find out where an Access Virus b/kb/indigo/rack might be located. To say the demand is high is an understatement...I have seen some posts on the 'net where people stated they had to wait 6-12 weeks from the time they ordered one to get it.
Based on press reviews, anecdotal reports and the sound samples on Access’ website (http://www.access-music.de/) I decided to order a Virus b sight unseen (I had auditioned the original Virus a couple of years ago) from NovaMusik (http://www.novamusik.com/). I recommend them highly - I got a great price and their service has been excellent.
Let me just say I am so very pleased with the Virus b. The main criterion by which I judge a synthesizer is sound, and the Virus really delivers in this department for my uses. I love the filters and the timbral range, which runs from smooth-as-silk to raw and ripping. To say the Virus is a synth with bags of character would be an understatement. I hope you find one to try!
