Braided SS vs. Hard Line

It's the RUBBER stainless lines that expand, and of course give a spongie pedal. That's why you MUST use teflon, it doesn't expand under pressure.
If the lines you have access to have normal A/N fittings, they are likely rubber, and I would NOT use them.
You can usually tell if rubber or teflon line . The rubber is fairly flexible and can be used in a fairly tight bend. Teflon is stiffer (and lasts ten times longer) and can't be bent as tight.
Edit: you really want "on the cheap" brake parts on your car?

Thank you again! I get ya, PTFE... haha, I didn't realize the "T" stood for teflon.

"on the cheap" means I have access to discounted QUALITY products, specifically some Russel PTFE 308 SS Braided hose. The parts are by no means cheap in quality, just a heck of a price cut. Sorry for the confusion there, I should have used better wording.

This is an all new install, as the car was stripped to it's shell and underwent a full restore. Finally at the stage of the brake system. I have a full Wilwood disc kit front/back, MC, and prop. I do have nicopp and will be making my own lines. Just was curious on the short 14" section on the rear.