Master cylinder replacement woes

Don't know anything about the eBay set up.

But, I can tell you that the wire that's wound around the original lines is more like a spring, once the flare ends are cut off of the old line, it slides right off. It can then be slid right onto your new lines before you flare the ends. That's what I did when I made up the lines for our '55, I just reused the old spiral wound cover.