Help requested finding these Brake Hoses

If they could have used steel line to the front wheels they would have. Rubber hose expands and will soften the pedal. If you want to keep the existing setup I would replumb it and use some stock mopar hoses that are readily available or go aftermarket braided.
Brake hoses typically dont leak. The main failure is the hose swells up inside and will block flow, usually causing the brakes to lock up. If you cut open a brake hose you will see that is a very small hole in the middle.