I received the replacement emergency brake assembly from Classic Industries. This particular online seller had the part in stock and able to ship it immediately.
The replacement emergency brake assembly didn’t come with a parking brake switch so I removed the original part, sanded it down and sprayed a coat of gloss black paint to match the new assembly.
Once I figured out the proper orientation the parking brake switch lever needed to be for re-installation it was much easier connecting the cable back into the slotted carrier position.