I believe his source is no longer available on e-bay (flee-bay). I picked up a similar one on e-bay that has an optional S-bar that I now only use. See if I can get the vendor name link and all for ya.
Btw....I saw Tong's setup in person and decided to get the same one he had last year but the vendor was no longer available. Oh and Tong what happened to the video of my run in original post? Never got a chance to see it.