Thanks for all the response. I'm gonna have to think about this one for a bit. I did contact a couple vendors I found in China, but they want huge minimum quantities. Maybe they can refer me to one of their customers.
This cord is for a specific tarp design I have in mind. I'll probably just use Lashit on the tarp side on my prototype. If I decide to build more of them, I'll just order the larger quantity from China I guess. It's just major overkill, and will be tougher to see.
I'll post again here when I finally decide on what to use.