Front Flexible Brake Lines KH Disc Brakes

I just swapped from 10" drum on my '67 Cuda to factory KH disc from a '67 Cuda S Type. This has become a "if it's apart this far I may as well..." project and I'm at the point of putting it all back together. I've put new hard brake lines on and now I need the flexible lines at the wheels. The challenge is I got Napa lines and the don't fit or look right in the wheel well retainers that have a rectangle type fitting. Does anyone have a source for factory original type lines?

Kraig