So I just had an idea, see this:
Maybe, just maybe, this would work.
you’ll need an antenna tuner because reasons, and probably extra strain relief, but think about it.
need a 10/20/40m antenna?
hook up two 10m cat5 lengths!
you could keep it in a bag, and go off camping or to a field day, forgot your cables?
no prob! head to a nearby electronics store and grab some ethernet of the length you need!
where the cat5 jacks connect to the pl-259, all wires are used in the cat5.
JUST DONT GO PLUGGING THE OTHER END INTO ANYTHING HAHAA