Stripped Brake Line

[SVXMAN2001]

I tried searching the forum unsuccessfully, this evening I started installing my new ss brake lines, all were going very well till the last one, the rear driver's side. I completely stripped the flare nut that connects the rubber hose with the metal brake piping. Does anyone have any suggestions of loosening the flare nut?

I did some research on other forums and some have stated the following:

Using a set of vice grips on the flare nut while using a flare nut to stabilize the rubber brake line...

Cutting the metal piping as close to the flare nut as possible and rethreading that portion of the line...

Installing a complete new line...

Thoughts, alternative solutions?

Thanks in advance for any help/suggestions. chris.