OMG!!! What an amazing pattern! I must make one, too! Thanks for sharing the link!
ETA: I would choose a stitch pattern that is just knits and purls; no ribbing or cables. A geometric with nice vertical or horizontal lines would be nice, because when you wear it, it would be on the diagonal, which would empasize the unique construction of this piece.
I would use a clean, crisp yarn that would make the knits and purls really pop out, in a solid or very subtlely varigated color. That way the yarn texture and color would play second fiddle to the construction, which is really the centerpiece of this item.