The CJ E-brake is a pedal on the left kick panel like old cars, not a lever on the floor between the seats. Check ebay, the pedal from a CJ or YJ from 76-95 will fit.
You might check www.omix-ada.com for the rest of the parts, MC here is a distributor for them. The bar that hooks the single cable from the pedal to the 2 cables from the drums is called an equalizer.
Bob
tufcj