They just replaced a very long on at work a month ago, a little different from what you are looking for, or what I was thinking last post. Wish I could have gotten it though. Most of it was in fair shape, just spliced a few times. Really tough stuff, more then 12 year of abuse. Can't believe they just threw it in the dumpster.
Maybe you can get luck and find something used like that. They use to let me take stuff home, if I catch it before hand. Usually they do this stuff on weekends now, and the parts, material, and equipment gets buried before hear about it.