Contact Barnett. They can do a cable any length and a bunch of different materials. When I put risers on my wife's T100, I talked to them and found out the clutch cable (for all Bonnies, T100s, Americas, and Speedmasters) are the same. The part number I was given is TR12002BONCLTH.
btw, the stock cable from my 02 BA fit her 07 perfectly. PM me your email and I will send you the PDF they sent me with the cable specs.