I think this is perhaps a good niche' for a piece of custom hardware. A small Al or Ti rod, of sufficient diameter, with eyelets on either end large enough only for Amsteel to pass through.
“I think that when the lies are all told and forgot the truth will be there yet. It dont move about from place to place and it dont change from time to time. You cant corrupt it any more than you can salt salt.” - Cormac McCarthy