If you want to do the job at Concourse level take pics of where the black paint stops. Place the assembly in a solution of molasses and water 9 parts water 1 part molasses. Use feed grade cost $18.00 for 5 gallons here makes 50 gallons. Clean all grease and oil off the assembly and hang in the molasses for a couple weeks or less if not bad. Remove and wash with hot water and brush, all rust will be gone. You should glass bead or sand blast the assembly to give it the texture for the manganese phosphate coating. Blow out all blasting material. Order a bottle of the manganese phosphate chemical also known as Parkerizing and treat as directed. Remove and wash and apply several coats of WD-40 add or some of the specialty coatings the chemical suppliers have, some grease to the pivot points and sliding areas paint the pedal arm and put your pad back on. It will be just like new and have all the wear and lube qualities that original has. Paint makes them sticky and not work correctly.
They use this type coating on lots of parts in the car such as rocker, cams, gears, bearings, lifters, etc. It gives the parts a better wear surface, holds lube better and prevents galling. If you just paint the parts like the parking brake, hood hinges and hood latches you don't get those benefits and they will wear much faster and are sticky.
I found a stainless serving pan at Goodwill and electric hot plate to do mine outside.
I cannot find my papers that came with the chemicals but I ordered online and came UPS. You just keep adding distilled water as it evaporates out.
My pictures of the parts are on old computer that died so cannot post and car is in storage now.