I think that when I re-do mine I'll probably go with a thin gauge vinyl coated wire rope.
Crown Bolt 1/8 in. x 30 ft. Galvanized Vinyl-Coated Wire Rope Kit-64762 - The Home Depot
Need to put together another list of stuff I need to get done on the car and add this to it.
Like the coated wire thought. Should be a pretty solid way to handle it as long as the loop end is super solid.
I remember seeing a post like this before about an added release. I'll have to dig that up and save it as well. Would be nice on the coated wire if some wheels/pulleys could be placed at pivot points to give the cable a smooth operational run. Maybe a p n p trip to get one of those internal emergency trunk release handles. Hmmmm
Nice idea reno4u2 on the cable type wire.