Here is a photo of the string with a ruler.

Yes, if we can nail down some technical specifics then hopefully it may be easier to track down some bulk supply.

I just did a little searching around on eBay and found a lot of third party cables by Eureka and SKB. They look like they're made of metal cable and seem to be shooting for high accuracy with regards to cable twist and the type of hooks used for a specific vehicle. The price doesn't seem so bad and they look nice. Has anyone ever used these??