Doubtful the pedal has rusted. Probably one of the lines has seized.
The Parking brake has 1 cable connected to the pedal and it runs from the front of the car to the rear axle under the drivers side.
At that point it splits and pulls on 2 sep cables to engage the brakes.
Disconnect the main cable from the ones at the rear axle and see if the pedal moves. If not the cable is likely seized.
If the pedal now moves then it's one of the 2 smaller lines. Pull the drums off the rear and with an assistant present pull on each side of the rear cables to see if they move freely.
You can try to free them up to get them working for the inspection but you are better off replacing them.
If the frame and body of this car are in bad shape then maybe you should part it out to regain some of the money spent then go looking for something that does not need as much work.
To be completly honest, I have scrapped cars in better shape than what you are working on. Keep the good parts and sell off or scrap the rest.
Doors, frame rails, rear 1/4 will cost a bundle to fix right and you will spend much more in repairs than what the car is worth in the end.
The Parking brake has 1 cable connected to the pedal and it runs from the front of the car to the rear axle under the drivers side.
At that point it splits and pulls on 2 sep cables to engage the brakes.
Disconnect the main cable from the ones at the rear axle and see if the pedal moves. If not the cable is likely seized.
If the pedal now moves then it's one of the 2 smaller lines. Pull the drums off the rear and with an assistant present pull on each side of the rear cables to see if they move freely.
You can try to free them up to get them working for the inspection but you are better off replacing them.
If the frame and body of this car are in bad shape then maybe you should part it out to regain some of the money spent then go looking for something that does not need as much work.
To be completly honest, I have scrapped cars in better shape than what you are working on. Keep the good parts and sell off or scrap the rest.
Doors, frame rails, rear 1/4 will cost a bundle to fix right and you will spend much more in repairs than what the car is worth in the end.