I while back I tried looking for cables to fit ape hangers with about a 12" rise. I forgot, but I think it was Barnett Cables, that someone suggested trying. Anyways, ordering custom cables was just too much work and complication for my lazy self so I went with ape hangers with about a 71/2" rise (if I measured correctly) and they fit with the stock cables. The only thing I had to do was reroute the the throttle cable and wires to behind the fork.
Heres a pic I posted a while back