tube straightening...

Buy a kit from eBay of bendable brake lines. They come straight with the ends already installed, and double flared, with copper plate like the originals. They give enough in the kit to do a whole car and then some. Was like $50 to do my Dart, and I have a lot left over. Several different lengths come per kit. You can bend it by hand and it won't kink.
Search for Malleable Brake Lines on eBay.

George