1997 Chevy P32 parking brake cable. Southwind Storm is

We need to find the correct parking brake cable (from the foot pedal to the linkage). I've pulled the shaft brake drum to check the shoes and found out that the cable coming through the firewall from the parking brake foot pedal is bad. The cable from the linkage to the brake shoes is ok. This does not have the hand operated lever but the foot operated one. 19.5 inch wheels. It'd be wonderful if a local supplier has one.