your link doesn't seem to work for me, even the web address if I copy and paste it. However I have been informed that for past CCSVI patients the testing has cost $14,000 on average, with a spread in that number depending on exactly what scans should be taken according to Dr. Dake's assessment.
My insurance (Healthnet PPO, a standard insurance for those working for UC Berkeley, which has proven to be very bad insurance to myself and some of my colleagues) didn't pre-authorize the scans, which means that a) they only pay 50% (given that the MRAs are "covered services", and b) the 50% I have to pay do NOT go toward my out-of-pocket maximum. In other words I'd have to pay around $7k myself, if Stanford financial assistance wouldn't help me out and carry all radiology's charges beyond the 50% the insurance pays.
Hope this helps