Why do you feel the need to re-wire them? New Black Diamond wired hexes are $10-$16 each,wired stoppers are $9-$10. I can't imagine any competent person replacing the wires for much less than that. Factor in shipping or travel to and from wherever the repair person is, and replacing wires on passive pro starts to look like false economy.
cause economy != ecology? Sure, it's cheaper to produce half-finished parts in america, ship them to china, have them anodised and assembled there (and likely dump the anodising acids in a river) and ship them back than to take a piece of cordalette and tie a double fisherman to an already produced but still funtional piece of gear.
I agree, I wouldn't rewire, so small nuts are definately shot when the wires are, bigger ones can be saved if you don't mind the lower ergonomics of not having a stiff wire but the OP asked about hexes. And as you stated you have done it yourself... Well... The OP has her answer (as in sod the wired hexes, sling them with cordalette) and we agree on the other points, good night I guess? :p